111900538899999 has 24 divisors (see below), whose sum is σ = 163938449649312. Its totient is φ = 73537175120640.

The previous prime is 111900538899953. The next prime is 111900538900019. The reversal of 111900538899999 is 999998835009111.

It is not a de Polignac number, because 111900538899999 - 2¹³ = 111900538891807 is a prime.

It is a super-2 number, since 2×111900538899999² (a number of 29 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (81) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111900538899199) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11079894 + ... + 18616259.

It is an arithmetic number, because the mean of its divisors is an integer number (6830768735388).

Almost surely, 2^{111900538899999} is an apocalyptic number.

111900538899999 is a deficient number, since it is larger than the sum of its proper divisors (52037910749313).

111900538899999 is a wasteful number, since it uses less digits than its factorization.

111900538899999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29702127 (or 29702124 counting only the distinct ones).

The product of its (nonzero) digits is 510183360, while the sum is 81.

The spelling of 111900538899999 in words is "one hundred eleven trillion, nine hundred billion, five hundred thirty-eight million, eight hundred ninety-nine thousand, nine hundred ninety-nine".