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1030120030231 = 1894015438831
BaseRepresentation
bin11101111110101111111…
…00000100000000010111
310122110220211120111101021
432333113330010000113
5113334141211431411
62105121451142011
7134265222533155
oct16772774040027
93573824514337
101030120030231
113679649a1466
12147789144907
13761a8498536
1437c027b83d5
151bbe0b9ea71
hexefd7f04017

1030120030231 has 4 divisors (see below), whose sum is σ = 1030125658464. Its totient is φ = 1030114402000.

The previous prime is 1030120030229. The next prime is 1030120030273. The reversal of 1030120030231 is 1320300210301.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1030120030231 - 21 = 1030120030229 is a prime.

It is a super-2 number, since 2×10301200302312 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030120030201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2530015 + ... + 2908816.

It is an arithmetic number, because the mean of its divisors is an integer number (257531414616).

Almost surely, 21030120030231 is an apocalyptic number.

1030120030231 is a deficient number, since it is larger than the sum of its proper divisors (5628233).

1030120030231 is an equidigital number, since it uses as much as digits as its factorization.

1030120030231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5628232.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 1030120030231 its reverse (1320300210301), we get a palindrome (2350420240532).

The spelling of 1030120030231 in words is "one trillion, thirty billion, one hundred twenty million, thirty thousand, two hundred thirty-one".

Divisors: 1 189401 5438831 1030120030231