2931091113 has 4 divisors (see below), whose sum is σ = 3908121488. Its totient is φ = 1954060740.

The previous prime is 2931091063. The next prime is 2931091147. The reversal of 2931091113 is 3111901392.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2931091113 - 2¹² = 2931087017 is a prime.

It is a super-2 number, since 2×2931091113² = 17182590225415157538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2931091153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 488515183 + ... + 488515188.

It is an arithmetic number, because the mean of its divisors is an integer number (977030372).

Almost surely, 2^2931091113 is an apocalyptic number.

It is an amenable number.

2931091113 is a deficient number, since it is larger than the sum of its proper divisors (977030375).

2931091113 is an equidigital number, since it uses as much as digits as its factorization.

2931091113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 977030374.

The product of its (nonzero) digits is 1458, while the sum is 30.

The square root of 2931091113 is about 54139.5522053886. The cubic root of 2931091113 is about 1431.1212802427.

The spelling of 2931091113 in words is "two billion, nine hundred thirty-one million, ninety-one thousand, one hundred thirteen".