111335642243 has 16 divisors (see below), whose sum is σ = 129364291584. Its totient is φ = 93838793760.

The previous prime is 111335642237. The next prime is 111335642251. The reversal of 111335642243 is 342246533111.

It is a cyclic number.

It is not a de Polignac number, because 111335642243 - 2¹⁴ = 111335625859 is a prime.

It is a super-2 number, since 2×111335642243² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111335642203) 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, 1504046 + ... + 1576332.

It is an arithmetic number, because the mean of its divisors is an integer number (8085268224).

Almost surely, 2^111335642243 is an apocalyptic number.

111335642243 is a deficient number, since it is larger than the sum of its proper divisors (18028649341).

111335642243 is an equidigital number, since it uses as much as digits as its factorization.

111335642243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75962.

The product of its digits is 51840, while the sum is 35.

The spelling of 111335642243 in words is "one hundred eleven billion, three hundred thirty-five million, six hundred forty-two thousand, two hundred forty-three".