102131333142245 has 64 divisors (see below), whose sum is σ = 139867009597440. Its totient is φ = 70867408550400.

The previous prime is 102131333142233. The next prime is 102131333142247. The reversal of 102131333142245 is 542241333131201.

It is a happy number.

It is not a de Polignac number, because 102131333142245 - 2²⁸ = 102131064706789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102131333142247) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 866849390 + ... + 866967200.

It is an arithmetic number, because the mean of its divisors is an integer number (2185422024960).

Almost surely, 2^{102131333142245} is an apocalyptic number.

It is an amenable number.

102131333142245 is a deficient number, since it is larger than the sum of its proper divisors (37735676455195).

102131333142245 is a wasteful number, since it uses less digits than its factorization.

102131333142245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119586.

The product of its (nonzero) digits is 51840, while the sum is 35.

Adding to 102131333142245 its reverse (542241333131201), we get a palindrome (644372666273446).

The spelling of 102131333142245 in words is "one hundred two trillion, one hundred thirty-one billion, three hundred thirty-three million, one hundred forty-two thousand, two hundred forty-five".