23251013442 has 64 divisors (see below), whose sum is σ = 52452556800. Its totient is φ = 7633679760.

The previous prime is 23251013419. The next prime is 23251013447. The reversal of 23251013442 is 24431015232.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (23251013447) 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 31 ways as a sum of consecutive naturals, for example, 941067 + ... + 965457.

It is an arithmetic number, because the mean of its divisors is an integer number (819571200).

Almost surely, 2^23251013442 is an apocalyptic number.

23251013442 is an abundant number, since it is smaller than the sum of its proper divisors (29201543358).

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

23251013442 is a wasteful number, since it uses less digits than its factorization.

23251013442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24668 (or 24662 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 23251013442 its reverse (24431015232), we get a palindrome (47682028674).

The spelling of 23251013442 in words is "twenty-three billion, two hundred fifty-one million, thirteen thousand, four hundred forty-two".