7213112057 has 2 divisors, whose sum is σ = 7213112058. Its totient is φ = 7213112056.

The previous prime is 7213112033. The next prime is 7213112059. The reversal of 7213112057 is 7502113127.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4501202281 + 2711909776 = 67091^2 + 52076^2 .

It is a cyclic number.

It is not a de Polignac number, because 7213112057 - 2²² = 7208917753 is a prime.

Together with 7213112059, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7213112059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3606556028 + 3606556029.

It is an arithmetic number, because the mean of its divisors is an integer number (3606556029).

Almost surely, 2^7213112057 is an apocalyptic number.

It is an amenable number.

7213112057 is a deficient number, since it is larger than the sum of its proper divisors (1).

7213112057 is an equidigital number, since it uses as much as digits as its factorization.

7213112057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2940, while the sum is 29.

The square root of 7213112057 is about 84930.0421346887. The cubic root of 7213112057 is about 1932.1502390964.

The spelling of 7213112057 in words is "seven billion, two hundred thirteen million, one hundred twelve thousand, fifty-seven".