23500133313440 has 96 divisors (see below), whose sum is σ = 66789852635520. Its totient is φ = 7633126001664.

The previous prime is 23500133313413. The next prime is 23500133313443. The reversal of 23500133313440 is 4431333100532.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 23500133313397 and 23500133313406.

It is not an unprimeable number, because it can be changed into a prime (23500133313443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 552143507 + ... + 552186066.

It is an arithmetic number, because the mean of its divisors is an integer number (695727631620).

Almost surely, 2^{23500133313440} is an apocalyptic number.

23500133313440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23500133313440 is an abundant number, since it is smaller than the sum of its proper divisors (43289719322080).

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

23500133313440 is a wasteful number, since it uses less digits than its factorization.

23500133313440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1104329614 (or 1104329606 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 32.

Adding to 23500133313440 its reverse (4431333100532), we get a palindrome (27931466413972).

The spelling of 23500133313440 in words is "twenty-three trillion, five hundred billion, one hundred thirty-three million, three hundred thirteen thousand, four hundred forty".