2113031788 has 48 divisors (see below), whose sum is σ = 4269551104. Its totient is φ = 896313600.

The previous prime is 2113031783. The next prime is 2113031797. The reversal of 2113031788 is 8871303112.

It is not an unprimeable number, because it can be changed into a prime (2113031783) 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 15 ways as a sum of consecutive naturals, for example, 1424095 + ... + 1425577.

Almost surely, 2^2113031788 is an apocalyptic number.

2113031788 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2113031788 is an abundant number, since it is smaller than the sum of its proper divisors (2156519316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2113031788 is a wasteful number, since it uses less digits than its factorization.

2113031788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1982 (or 1980 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 2113031788 is about 45967.7255038793. The cubic root of 2113031788 is about 1283.2226307762. Note that the first 3 decimals are identical.

The spelling of 2113031788 in words is "two billion, one hundred thirteen million, thirty-one thousand, seven hundred eighty-eight".