23031112320 has 192 divisors, whose sum is σ = 82475396640. Its totient is φ = 6141588480.

The previous prime is 23031112303. The next prime is 23031112337. The reversal of 23031112320 is 2321113032.

23031112320 is a `hidden beast` number, since 2 + 30 + 311 + 1 + 2 + 320 = 666.

It is an interprime number because it is at equal distance from previous prime (23031112303) and next prime (23031112337).

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 23031112293 and 23031112302.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81475 + ... + 229565.

Almost surely, 2^23031112320 is an apocalyptic number.

23031112320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23031112320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41237698320).

23031112320 is an abundant number, since it is smaller than the sum of its proper divisors (59444284320).

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

23031112320 is an equidigital number, since it uses as much as digits as its factorization.

23031112320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148125 (or 148101 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 23031112320 its reverse (2321113032), we get a palindrome (25352225352).

The spelling of 23031112320 in words is "twenty-three billion, thirty-one million, one hundred twelve thousand, three hundred twenty".