23156030634 has 24 divisors (see below), whose sum is σ = 50904994560. Its totient is φ = 7016978760.

The previous prime is 23156030621. The next prime is 23156030657. The reversal of 23156030634 is 43603065132.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 23156030595 and 23156030604.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15946954 + ... + 15948405.

It is an arithmetic number, because the mean of its divisors is an integer number (2121041440).

Almost surely, 2^23156030634 is an apocalyptic number.

23156030634 is an abundant number, since it is smaller than the sum of its proper divisors (27748963926).

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

23156030634 is a wasteful number, since it uses less digits than its factorization.

23156030634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31895386 (or 31895375 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 33.

Adding to 23156030634 its reverse (43603065132), we get a palindrome (66759095766).

The spelling of 23156030634 in words is "twenty-three billion, one hundred fifty-six million, thirty thousand, six hundred thirty-four".