23232031540 has 12 divisors (see below), whose sum is σ = 48787266276. Its totient is φ = 9292812608.

The previous prime is 23232031507. The next prime is 23232031541. The reversal of 23232031540 is 4513023232.

It can be written as a sum of positive squares in 2 ways, for example, as 12169619856 + 11062411684 = 110316^2 + 105178^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23232031541) 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, 580800769 + ... + 580800808.

It is an arithmetic number, because the mean of its divisors is an integer number (4065605523).

Almost surely, 2^23232031540 is an apocalyptic number.

23232031540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23232031540 is an abundant number, since it is smaller than the sum of its proper divisors (25555234736).

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

23232031540 is a wasteful number, since it uses less digits than its factorization.

23232031540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1161601586 (or 1161601584 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

Adding to 23232031540 its reverse (4513023232), we get a palindrome (27745054772).

The spelling of 23232031540 in words is "twenty-three billion, two hundred thirty-two million, thirty-one thousand, five hundred forty".