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1030231232120 = 235109587402541
BaseRepresentation
bin11101111110111101001…
…00010000111001111000
310122111012120211010200202
432333132210100321320
5113334403143411440
62105140502421332
7134301042662006
oct16773644207170
93574176733622
101030231232120
11367a11744052
121477ba431848
13761c553197c
1437c13483a76
151bbea818615
hexefde910e78

1030231232120 has 64 divisors (see below), whose sum is σ = 2343277490400. Its totient is φ = 407615224320.

The previous prime is 1030231232101. The next prime is 1030231232161. The reversal of 1030231232120 is 212321320301.

It is a super-2 number, since 2×10302312321202 (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1030231232092 and 1030231232101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2358050 + ... + 2760590.

Almost surely, 21030231232120 is an apocalyptic number.

1030231232120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1030231232120 is an abundant number, since it is smaller than the sum of its proper divisors (1313046258280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1030231232120 is a wasteful number, since it uses less digits than its factorization.

1030231232120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403248 (or 403244 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 1030231232120 its reverse (212321320301), we get a palindrome (1242552552421).

The spelling of 1030231232120 in words is "one trillion, thirty billion, two hundred thirty-one million, two hundred thirty-two thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 109 218 436 545 587 872 1090 1174 2180 2348 2935 4360 4696 5870 11740 23480 63983 127966 255932 319915 402541 511864 639830 805082 1279660 1610164 2012705 2559320 3220328 4025410 8050820 16101640 43876969 87753938 175507876 219384845 236291567 351015752 438769690 472583134 877539380 945166268 1181457835 1755078760 1890332536 2362915670 4725831340 9451662680 25755780803 51511561606 103023123212 128778904015 206046246424 257557808030 515115616060 1030231232120