112990031 has 16 divisors (see below), whose sum is σ = 143750400. Its totient is φ = 88041240.

The previous prime is 112990027. The next prime is 112990037. The reversal of 112990031 is 130099211.

It is not a de Polignac number, because 112990031 - 2² = 112990027 is a prime.

It is a super-2 number, since 2×112990031² = 25533494210761922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112990037) 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, 11201 + ... + 18746.

It is an arithmetic number, because the mean of its divisors is an integer number (8984400).

Almost surely, 2^112990031 is an apocalyptic number.

112990031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

112990031 is a deficient number, since it is larger than the sum of its proper divisors (30760369).

112990031 is an equidigital number, since it uses as much as digits as its factorization.

112990031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29979 (or 29965 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 26.

The square root of 112990031 is about 10629.6769000756. The cubic root of 112990031 is about 483.4445951812. Note that the first 3 decimals are identical.

The spelling of 112990031 in words is "one hundred twelve million, nine hundred ninety thousand, thirty-one".