215813012711 has 2 divisors, whose sum is σ = 215813012712. Its totient is φ = 215813012710.

The previous prime is 215813012677. The next prime is 215813012713. The reversal of 215813012711 is 117210318512.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 215813012711 - 2³⁰ = 214739270887 is a prime.

It is a Sophie Germain prime.

Together with 215813012713, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (215813012713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107906506355 + 107906506356.

It is an arithmetic number, because the mean of its divisors is an integer number (107906506356).

Almost surely, 2^215813012711 is an apocalyptic number.

215813012711 is a deficient number, since it is larger than the sum of its proper divisors (1).

215813012711 is an equidigital number, since it uses as much as digits as its factorization.

215813012711 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 32.

The spelling of 215813012711 in words is "two hundred fifteen billion, eight hundred thirteen million, twelve thousand, seven hundred eleven".