111679055731 has 4 divisors (see below), whose sum is σ = 112763318512. Its totient is φ = 110594792952.

The previous prime is 111679055729. The next prime is 111679055753. The reversal of 111679055731 is 137550976111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 137550976111 = 47 ⋅2926616513.

It is a cyclic number.

It is not a de Polignac number, because 111679055731 - 2¹ = 111679055729 is a prime.

It is a super-2 number, since 2×111679055731² (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 (111679055771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 542131236 + ... + 542131441.

It is an arithmetic number, because the mean of its divisors is an integer number (28190829628).

Almost surely, 2^111679055731 is an apocalyptic number.

111679055731 is a deficient number, since it is larger than the sum of its proper divisors (1084262781).

111679055731 is a wasteful number, since it uses less digits than its factorization.

111679055731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1084262780.

The product of its (nonzero) digits is 198450, while the sum is 46.

The spelling of 111679055731 in words is "one hundred eleven billion, six hundred seventy-nine million, fifty-five thousand, seven hundred thirty-one".