111101261942 has 32 divisors (see below), whose sum is σ = 189225089280. Its totient is φ = 48459993120.

The previous prime is 111101261893. The next prime is 111101261959. The reversal of 111101261942 is 249162101111.

It is a super-2 number, since 2×111101261942² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 430178 + ... + 638165.

It is an arithmetic number, because the mean of its divisors is an integer number (5913284040).

Almost surely, 2^111101261942 is an apocalyptic number.

111101261942 is a deficient number, since it is larger than the sum of its proper divisors (78123827338).

111101261942 is a wasteful number, since it uses less digits than its factorization.

111101261942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1068548.

The product of its (nonzero) digits is 864, while the sum is 29.

The spelling of 111101261942 in words is "one hundred eleven billion, one hundred one million, two hundred sixty-one thousand, nine hundred forty-two".