102813122544 has 80 divisors (see below), whose sum is σ = 304995895680. Its totient is φ = 29515726080.

The previous prime is 102813122519. The next prime is 102813122557. The reversal of 102813122544 is 445221318201.

It is a super-2 number, since 2×102813122544² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

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, 5114227 + ... + 5134290.

It is an arithmetic number, because the mean of its divisors is an integer number (3812448696).

Almost surely, 2^102813122544 is an apocalyptic number.

It is an amenable number.

102813122544 is an abundant number, since it is smaller than the sum of its proper divisors (202182773136).

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

102813122544 is a wasteful number, since it uses less digits than its factorization.

102813122544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10248558 (or 10248552 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The spelling of 102813122544 in words is "one hundred two billion, eight hundred thirteen million, one hundred twenty-two thousand, five hundred forty-four".