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10023102031 = 13217587511
BaseRepresentation
bin10010101010110110…
…00110011001001111
3221212112020100011011
421111123012121033
5131011403231111
64334325510051
7503244650545
oct112533063117
927775210134
1010023102031
1142838639a8
121b38872327
13c39718807
146b1257d95
153d9e23021
hex2556c664f

10023102031 has 4 divisors (see below), whose sum is σ = 10030690864. Its totient is φ = 10015513200.

The previous prime is 10023102007. The next prime is 10023102043. The reversal of 10023102031 is 13020132001.

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 10023102031 - 227 = 9888884303 is a prime.

It is a super-2 number, since 2×100231020312 (a number of 21 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 (10023172031) 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, 3792435 + ... + 3795076.

It is an arithmetic number, because the mean of its divisors is an integer number (2507672716).

Almost surely, 210023102031 is an apocalyptic number.

10023102031 is a deficient number, since it is larger than the sum of its proper divisors (7588833).

10023102031 is an equidigital number, since it uses as much as digits as its factorization.

10023102031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7588832.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 10023102031 its reverse (13020132001), we get a palindrome (23043234032).

The spelling of 10023102031 in words is "ten billion, twenty-three million, one hundred two thousand, thirty-one".

Divisors: 1 1321 7587511 10023102031