23112100031 has 4 divisors (see below), whose sum is σ = 23503830600. Its totient is φ = 22720369464.

The previous prime is 23112100019. The next prime is 23112100051. The reversal of 23112100031 is 13000121132.

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 23112100031 - 2¹⁴ = 23112083647 is a prime.

It is a super-2 number, since 2×23112100031² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23112099979 and 23112100015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23112100051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195865196 + ... + 195865313.

It is an arithmetic number, because the mean of its divisors is an integer number (5875957650).

Almost surely, 2^23112100031 is an apocalyptic number.

23112100031 is a deficient number, since it is larger than the sum of its proper divisors (391730569).

23112100031 is an equidigital number, since it uses as much as digits as its factorization.

23112100031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391730568.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 23112100031 its reverse (13000121132), we get a palindrome (36112221163).

The spelling of 23112100031 in words is "twenty-three billion, one hundred twelve million, one hundred thousand, thirty-one".