213111313979 has 2 divisors, whose sum is σ = 213111313980. Its totient is φ = 213111313978.

The previous prime is 213111313973. The next prime is 213111314021. The reversal of 213111313979 is 979313111312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213111313979 - 2⁴ = 213111313963 is a prime.

It is not a weakly prime, because it can be changed into another prime (213111313973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106555656989 + 106555656990.

It is an arithmetic number, because the mean of its divisors is an integer number (106555656990).

Almost surely, 2^213111313979 is an apocalyptic number.

213111313979 is a deficient number, since it is larger than the sum of its proper divisors (1).

213111313979 is an equidigital number, since it uses as much as digits as its factorization.

213111313979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30618, while the sum is 41.

The spelling of 213111313979 in words is "two hundred thirteen billion, one hundred eleven million, three hundred thirteen thousand, nine hundred seventy-nine".