2112555031 has 6 divisors (see below), whose sum is σ = 2244133160. Its totient is φ = 1988286816.

The previous prime is 2112555023. The next prime is 2112555061. The reversal of 2112555031 is 1305552112.

It is not a de Polignac number, because 2112555031 - 2³ = 2112555023 is a prime.

It is a super-2 number, since 2×2112555031² = 8925777518006821922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2112554987 and 2112555005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112555061) 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 5 ways as a sum of consecutive naturals, for example, 3654651 + ... + 3655228.

Almost surely, 2^2112555031 is an apocalyptic number.

2112555031 is a deficient number, since it is larger than the sum of its proper divisors (131578129).

2112555031 is an equidigital number, since it uses as much as digits as its factorization.

2112555031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7309913 (or 7309896 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 2112555031 is about 45962.5394315849. The cubic root of 2112555031 is about 1283.1261136308.

The spelling of 2112555031 in words is "two billion, one hundred twelve million, five hundred fifty-five thousand, thirty-one".