2112031987 has 8 divisors (see below), whose sum is σ = 2275396704. Its totient is φ = 1948795968.

The previous prime is 2112031967. The next prime is 2112031993. The reversal of 2112031987 is 7891302112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2112031987 - 2²⁷ = 1977814259 is a prime.

It is a super-2 number, since 2×2112031987² = 8921358228222336338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2112031967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3378 + ... + 65080.

It is an arithmetic number, because the mean of its divisors is an integer number (284424588).

Almost surely, 2^2112031987 is an apocalyptic number.

2112031987 is a deficient number, since it is larger than the sum of its proper divisors (163364717).

2112031987 is a wasteful number, since it uses less digits than its factorization.

2112031987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64349.

The product of its (nonzero) digits is 6048, while the sum is 34.

The square root of 2112031987 is about 45956.8491848604. The cubic root of 2112031987 is about 1283.0202092005.

The spelling of 2112031987 in words is "two billion, one hundred twelve million, thirty-one thousand, nine hundred eighty-seven".