102111100020999 has 12 divisors (see below), whose sum is σ = 151480130361976. Its totient is φ = 66234227040432.

The previous prime is 102111100020931. The next prime is 102111100021003. The reversal of 102111100020999 is 999020001111201.

It is not a de Polignac number, because 102111100020999 - 2²⁴ = 102111083243783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102111100027999) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 153319969669 + ... + 153319970334.

Almost surely, 2^{102111100020999} is an apocalyptic number.

102111100020999 is a deficient number, since it is larger than the sum of its proper divisors (49369030340977).

102111100020999 is a wasteful number, since it uses less digits than its factorization.

102111100020999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306639940046 (or 306639940043 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 36.

The spelling of 102111100020999 in words is "one hundred two trillion, one hundred eleven billion, one hundred million, twenty thousand, nine hundred ninety-nine".