2113133213 has 2 divisors, whose sum is σ = 2113133214. Its totient is φ = 2113133212.

The previous prime is 2113133173. The next prime is 2113133237. The reversal of 2113133213 is 3123313112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1330644484 + 782488729 = 36478^2 + 27973^2 .

It is a cyclic number.

It is not a de Polignac number, because 2113133213 - 2⁶ = 2113133149 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2113133273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056566606 + 1056566607.

It is an arithmetic number, because the mean of its divisors is an integer number (1056566607).

Almost surely, 2^2113133213 is an apocalyptic number.

It is an amenable number.

2113133213 is a deficient number, since it is larger than the sum of its proper divisors (1).

2113133213 is an equidigital number, since it uses as much as digits as its factorization.

2113133213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 324, while the sum is 20.

The square root of 2113133213 is about 45968.8287103337. The cubic root of 2113133213 is about 1283.2431619034.

Adding to 2113133213 its reverse (3123313112), we get a palindrome (5236446325).

The spelling of 2113133213 in words is "two billion, one hundred thirteen million, one hundred thirty-three thousand, two hundred thirteen".