2111312139 has 8 divisors (see below), whose sum is σ = 2819207232. Its totient is φ = 1405479240.

The previous prime is 2111312087. The next prime is 2111312153. The reversal of 2111312139 is 9312131112.

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

It is not a de Polignac number, because 2111312139 - 2⁷ = 2111312011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2111312039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 513157 + ... + 517254.

It is an arithmetic number, because the mean of its divisors is an integer number (352400904).

Almost surely, 2^2111312139 is an apocalyptic number.

2111312139 is a deficient number, since it is larger than the sum of its proper divisors (707895093).

2111312139 is a wasteful number, since it uses less digits than its factorization.

2111312139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1031097.

The product of its digits is 324, while the sum is 24.

The square root of 2111312139 is about 45949.0167359433. The cubic root of 2111312139 is about 1282.8744278731.

The spelling of 2111312139 in words is "two billion, one hundred eleven million, three hundred twelve thousand, one hundred thirty-nine".