2113240331 has 4 divisors (see below), whose sum is σ = 2113342992. Its totient is φ = 2113137672.

The previous prime is 2113240303. The next prime is 2113240343. The reversal of 2113240331 is 1330423112.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2113240331 is a prime.

It is a super-2 number, since 2×2113240331² = 8931569393129979122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2113240231) 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, 8591 + ... + 65576.

It is an arithmetic number, because the mean of its divisors is an integer number (528335748).

Almost surely, 2^2113240331 is an apocalyptic number.

2113240331 is a deficient number, since it is larger than the sum of its proper divisors (102661).

2113240331 is an equidigital number, since it uses as much as digits as its factorization.

2113240331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102660.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 2113240331 is about 45969.9938111808. The cubic root of 2113240331 is about 1283.2648447324.

Adding to 2113240331 its reverse (1330423112), we get a palindrome (3443663443).

The spelling of 2113240331 in words is "two billion, one hundred thirteen million, two hundred forty thousand, three hundred thirty-one".