102110102331021 has 72 divisors (see below), whose sum is σ = 161894515610880. Its totient is φ = 61953322796352.

The previous prime is 102110102330959. The next prime is 102110102331023. The reversal of 102110102331021 is 120133201011201.

102110102331021 is a `hidden beast` number, since 1 + 0 + 211 + 0 + 102 + 331 + 0 + 21 = 666.

It is not a de Polignac number, because 102110102331021 - 2³⁷ = 101972663377549 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102110102330985 and 102110102331003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102110102331023) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 4120816 + ... + 14872838.

It is an arithmetic number, because the mean of its divisors is an integer number (2248534939040).

Almost surely, 2^{102110102331021} is an apocalyptic number.

It is an amenable number.

102110102331021 is a deficient number, since it is larger than the sum of its proper divisors (59784413279859).

102110102331021 is a wasteful number, since it uses less digits than its factorization.

102110102331021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10752183 (or 10752161 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 102110102331021 its reverse (120133201011201), we get a palindrome (222243303342222).

The spelling of 102110102331021 in words is "one hundred two trillion, one hundred ten billion, one hundred two million, three hundred thirty-one thousand, twenty-one".