2113112331 has 24 divisors (see below), whose sum is σ = 3339686064. Its totient is φ = 1276853760.

The previous prime is 2113112329. The next prime is 2113112357. The reversal of 2113112331 is 1332113112.

2113112331 is a `hidden beast` number, since 21 + 1 + 311 + 2 + 331 = 666.

It is not a de Polignac number, because 2113112331 - 2¹ = 2113112329 is a prime.

It is a super-2 number, since 2×2113112331² = 8930487446848507122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2113112371) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1695 + ... + 65031.

It is an arithmetic number, because the mean of its divisors is an integer number (139153586).

Almost surely, 2^2113112331 is an apocalyptic number.

2113112331 is a deficient number, since it is larger than the sum of its proper divisors (1226573733).

2113112331 is a wasteful number, since it uses less digits than its factorization.

2113112331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63691 (or 63688 counting only the distinct ones).

The product of its digits is 108, while the sum is 18.

The square root of 2113112331 is about 45968.6015775986. The cubic root of 2113112331 is about 1283.2389348829.

Adding to 2113112331 its reverse (1332113112), we get a palindrome (3445225443).

The spelling of 2113112331 in words is "two billion, one hundred thirteen million, one hundred twelve thousand, three hundred thirty-one".