111918112629 has 4 divisors (see below), whose sum is σ = 149224150176. Its totient is φ = 74612075084.

The previous prime is 111918112609. The next prime is 111918112643. The reversal of 111918112629 is 926211819111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 111918112629 - 2¹³ = 111918104437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111918112609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18653018769 + ... + 18653018774.

It is an arithmetic number, because the mean of its divisors is an integer number (37306037544).

Almost surely, 2^111918112629 is an apocalyptic number.

It is an amenable number.

111918112629 is a deficient number, since it is larger than the sum of its proper divisors (37306037547).

111918112629 is an equidigital number, since it uses as much as digits as its factorization.

111918112629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37306037546.

The product of its digits is 15552, while the sum is 42.

The spelling of 111918112629 in words is "one hundred eleven billion, nine hundred eighteen million, one hundred twelve thousand, six hundred twenty-nine".