23131330120320 has 256 divisors, whose sum is σ = 74982668302080. Its totient is φ = 6063765258240.

The previous prime is 23131330120231. The next prime is 23131330120333. The reversal of 23131330120320 is 2302103313132.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

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, 208066669 + ... + 208177811.

It is an arithmetic number, because the mean of its divisors is an integer number (292901048055).

Almost surely, 2^{23131330120320} is an apocalyptic number.

23131330120320 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 23131330120320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37491334151040).

23131330120320 is an abundant number, since it is smaller than the sum of its proper divisors (51851338181760).

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

23131330120320 is a wasteful number, since it uses less digits than its factorization.

23131330120320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113003 (or 112991 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 23131330120320 its reverse (2302103313132), we get a palindrome (25433433433452).

The spelling of 23131330120320 in words is "twenty-three trillion, one hundred thirty-one billion, three hundred thirty million, one hundred twenty thousand, three hundred twenty".