102112131234021 has 16 divisors (see below), whose sum is σ = 136167190104000. Its totient is φ = 68065913760768.

The previous prime is 102112131233977. The next prime is 102112131234041. The reversal of 102112131234021 is 120432131211201.

It is not a de Polignac number, because 102112131234021 - 2²⁶ = 102112064125157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102112131233982 and 102112131234000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102112131234041) 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, 1544569515 + ... + 1544635623.

It is an arithmetic number, because the mean of its divisors is an integer number (8510449381500).

Almost surely, 2^{102112131234021} is an apocalyptic number.

It is an amenable number.

102112131234021 is a deficient number, since it is larger than the sum of its proper divisors (34055058869979).

102112131234021 is a wasteful number, since it uses less digits than its factorization.

102112131234021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125188.

The product of its (nonzero) digits is 576, while the sum is 24.

Adding to 102112131234021 its reverse (120432131211201), we get a palindrome (222544262445222).

The spelling of 102112131234021 in words is "one hundred two trillion, one hundred twelve billion, one hundred thirty-one million, two hundred thirty-four thousand, twenty-one".