102020031031031 has 16 divisors (see below), whose sum is σ = 108873303920640. Its totient is φ = 95261456626560.

The previous prime is 102020031030989. The next prime is 102020031031043. The reversal of 102020031031031 is 130130130020201.

It is not a de Polignac number, because 102020031031031 - 2⁴⁶ = 31651286853367 is a prime.

It is a super-4 number, since 4×102020031031031⁴ (a number of 57 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102020031031931) 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, 174109376 + ... + 174694346.

It is an arithmetic number, because the mean of its divisors is an integer number (6804581495040).

Almost surely, 2^{102020031031031} is an apocalyptic number.

102020031031031 is a deficient number, since it is larger than the sum of its proper divisors (6853272889609).

102020031031031 is a wasteful number, since it uses less digits than its factorization.

102020031031031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665894.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 102020031031031 its reverse (130130130020201), we get a palindrome (232150161051232).

The spelling of 102020031031031 in words is "one hundred two trillion, twenty billion, thirty-one million, thirty-one thousand, thirty-one".