102130521044 has 6 divisors (see below), whose sum is σ = 178728411834. Its totient is φ = 51065260520.

The previous prime is 102130521041. The next prime is 102130521067. The reversal of 102130521044 is 440125031201.

102130521044 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 58767456400 + 43363064644 = 242420^2 + 208238^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102130521041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12766315127 + ... + 12766315134.

It is an arithmetic number, because the mean of its divisors is an integer number (29788068639).

Almost surely, 2^102130521044 is an apocalyptic number.

It is an amenable number.

102130521044 is a deficient number, since it is larger than the sum of its proper divisors (76597890790).

102130521044 is a wasteful number, since it uses less digits than its factorization.

102130521044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25532630265 (or 25532630263 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 102130521044 its reverse (440125031201), we get a palindrome (542255552245).

The spelling of 102130521044 in words is "one hundred two billion, one hundred thirty million, five hundred twenty-one thousand, forty-four".