102131213231 has 8 divisors (see below), whose sum is σ = 104143806624. Its totient is φ = 100138255200.

The previous prime is 102131213203. The next prime is 102131213237. The reversal of 102131213231 is 132312131201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102131213231 - 2¹⁰ = 102131212207 is a prime.

It is a super-2 number, since 2×102131213231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102131213237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4898336 + ... + 4919141.

It is an arithmetic number, because the mean of its divisors is an integer number (13017975828).

Almost surely, 2^102131213231 is an apocalyptic number.

102131213231 is a deficient number, since it is larger than the sum of its proper divisors (2012593393).

102131213231 is a wasteful number, since it uses less digits than its factorization.

102131213231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9817681.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 102131213231 its reverse (132312131201), we get a palindrome (234443344432).

The spelling of 102131213231 in words is "one hundred two billion, one hundred thirty-one million, two hundred thirteen thousand, two hundred thirty-one".