23312161140 has 48 divisors (see below), whose sum is σ = 65446342080. Its totient is φ = 6200167680.

The previous prime is 23312161127. The next prime is 23312161181. The reversal of 23312161140 is 4116121332.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 23312161140.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 489841 + ... + 535320.

It is an arithmetic number, because the mean of its divisors is an integer number (1363465460).

Almost surely, 2^23312161140 is an apocalyptic number.

23312161140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23312161140 is an abundant number, since it is smaller than the sum of its proper divisors (42134180940).

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

23312161140 is a wasteful number, since it uses less digits than its factorization.

23312161140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1025552 (or 1025550 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 23312161140 its reverse (4116121332), we get a palindrome (27428282472).

The spelling of 23312161140 in words is "twenty-three billion, three hundred twelve million, one hundred sixty-one thousand, one hundred forty".