Search a number
-
+
1023230202031 = 5319306230227
BaseRepresentation
bin11101110001111010100…
…01011101000010101111
310121211010200010221220001
432320331101131002233
5113231033412431111
62102022050205131
7133632412132402
oct16707521350257
93554120127801
101023230202031
11364a49856574
121463858837a7
137564ac57c0b
143774b739d39
151b93ad991c1
hexee3d45d0af

1023230202031 has 4 divisors (see below), whose sum is σ = 1042536432312. Its totient is φ = 1003923971752.

The previous prime is 1023230202023. The next prime is 1023230202041. The reversal of 1023230202031 is 1302020323201.

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 1023230202031 - 23 = 1023230202023 is a prime.

It is a super-3 number, since 3×10232302020313 (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023230202041) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 9653115061 + ... + 9653115166.

It is an arithmetic number, because the mean of its divisors is an integer number (260634108078).

Almost surely, 21023230202031 is an apocalyptic number.

1023230202031 is a deficient number, since it is larger than the sum of its proper divisors (19306230281).

1023230202031 is an equidigital number, since it uses as much as digits as its factorization.

1023230202031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19306230280.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 1023230202031 its reverse (1302020323201), we get a palindrome (2325250525232).

The spelling of 1023230202031 in words is "one trillion, twenty-three billion, two hundred thirty million, two hundred two thousand, thirty-one".

Divisors: 1 53 19306230227 1023230202031