23440232312 has 24 divisors (see below), whose sum is σ = 51126017760. Its totient is φ = 10045813680.

The previous prime is 23440232311. The next prime is 23440232323. The reversal of 23440232312 is 21323204432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23440232311) 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 5 ways as a sum of consecutive naturals, for example, 29897864 + ... + 29898647.

It is an arithmetic number, because the mean of its divisors is an integer number (2130250740).

Almost surely, 2^23440232312 is an apocalyptic number.

It is an amenable number.

23440232312 is an abundant number, since it is smaller than the sum of its proper divisors (27685785448).

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

23440232312 is a wasteful number, since it uses less digits than its factorization.

23440232312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59796531 (or 59796520 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 23440232312 its reverse (21323204432), we get a palindrome (44763436744).

The spelling of 23440232312 in words is "twenty-three billion, four hundred forty million, two hundred thirty-two thousand, three hundred twelve".