111812944997 has 32 divisors (see below), whose sum is σ = 125402618880. Its totient is φ = 98985519360.

The previous prime is 111812944949. The next prime is 111812945033. The reversal of 111812944997 is 799449218111.

It is not a de Polignac number, because 111812944997 - 2⁶ = 111812944933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111812944927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 90830372 + ... + 90831602.

It is an arithmetic number, because the mean of its divisors is an integer number (3918831840).

Almost surely, 2^111812944997 is an apocalyptic number.

It is an amenable number.

111812944997 is a deficient number, since it is larger than the sum of its proper divisors (13589673883).

111812944997 is a wasteful number, since it uses less digits than its factorization.

111812944997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2693.

The product of its digits is 1306368, while the sum is 56.

The spelling of 111812944997 in words is "one hundred eleven billion, eight hundred twelve million, nine hundred forty-four thousand, nine hundred ninety-seven".