102100331031 has 4 divisors (see below), whose sum is σ = 136133774712. Its totient is φ = 68066887352.

The previous prime is 102100331009. The next prime is 102100331033. The reversal of 102100331031 is 130133001201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102100331031 - 2⁵ = 102100330999 is a prime.

It is a super-2 number, since 2×102100331031² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 102100331031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102100331033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17016721836 + ... + 17016721841.

It is an arithmetic number, because the mean of its divisors is an integer number (34033443678).

Almost surely, 2^102100331031 is an apocalyptic number.

102100331031 is a deficient number, since it is larger than the sum of its proper divisors (34033443681).

102100331031 is an equidigital number, since it uses as much as digits as its factorization.

102100331031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34033443680.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 102100331031 its reverse (130133001201), we get a palindrome (232233332232).

The spelling of 102100331031 in words is "one hundred two billion, one hundred million, three hundred thirty-one thousand, thirty-one".