2113312307 has 4 divisors (see below), whose sum is σ = 2113541760. Its totient is φ = 2113082856.

The previous prime is 2113312261. The next prime is 2113312309. The reversal of 2113312307 is 7032133112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2113312307 - 2¹⁰ = 2113311283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2113312309) 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, 100307 + ... + 119532.

It is an arithmetic number, because the mean of its divisors is an integer number (528385440).

Almost surely, 2^2113312307 is an apocalyptic number.

2113312307 is a deficient number, since it is larger than the sum of its proper divisors (229453).

2113312307 is an equidigital number, since it uses as much as digits as its factorization.

2113312307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229452.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 2113312307 is about 45970.7766630062. The cubic root of 2113312307 is about 1283.2794137050.

Adding to 2113312307 its reverse (7032133112), we get a palindrome (9145445419).

The spelling of 2113312307 in words is "two billion, one hundred thirteen million, three hundred twelve thousand, three hundred seven".