111992630427 has 20 divisors (see below), whose sum is σ = 167638421016. Its totient is φ = 74509666560.

The previous prime is 111992630419. The next prime is 111992630429. The reversal of 111992630427 is 724036299111.

111992630427 is a `hidden beast` number, since 1 + 1 + 1 + 9 + 9 + 2 + 630 + 4 + 2 + 7 = 666.

It is not a de Polignac number, because 111992630427 - 2³ = 111992630419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111992630429) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1368198 + ... + 1447739.

Almost surely, 2^111992630427 is an apocalyptic number.

111992630427 is a deficient number, since it is larger than the sum of its proper divisors (55645790589).

111992630427 is an equidigital number, since it uses as much as digits as its factorization.

111992630427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2816440 (or 2816431 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The spelling of 111992630427 in words is "one hundred eleven billion, nine hundred ninety-two million, six hundred thirty thousand, four hundred twenty-seven".