2113331031 has 96 divisors (see below), whose sum is σ = 3782138880. Its totient is φ = 1110412800.

The previous prime is 2113331029. The next prime is 2113331111. The reversal of 2113331031 is 1301333112.

It is a happy number.

It is not a de Polignac number, because 2113331031 - 2¹ = 2113331029 is a prime.

It is a super-2 number, since 2×2113331031² = 8932336093175045922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2113330995 and 2113331013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113231031) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 7520611 + ... + 7520891.

It is an arithmetic number, because the mean of its divisors is an integer number (39397280).

Almost surely, 2^2113331031 is an apocalyptic number.

2113331031 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2113331031 is a deficient number, since it is larger than the sum of its proper divisors (1668807849).

2113331031 is a wasteful number, since it uses less digits than its factorization.

2113331031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477 (or 474 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 2113331031 is about 45970.9803136718. The cubic root of 2113331031 is about 1283.2832036564.

Adding to 2113331031 its reverse (1301333112), we get a palindrome (3414664143).

The spelling of 2113331031 in words is "two billion, one hundred thirteen million, three hundred thirty-one thousand, thirty-one".