20118961711 has 2 divisors, whose sum is σ = 20118961712. Its totient is φ = 20118961710.

The previous prime is 20118961693. The next prime is 20118961747. The reversal of 20118961711 is 11716981102.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20118961711 - 2²⁷ = 19984743983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20118968711) 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, 10059480855 + 10059480856.

It is an arithmetic number, because the mean of its divisors is an integer number (10059480856).

Almost surely, 2^20118961711 is an apocalyptic number.

20118961711 is a deficient number, since it is larger than the sum of its proper divisors (1).

20118961711 is an equidigital number, since it uses as much as digits as its factorization.

20118961711 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 37.

The spelling of 20118961711 in words is "twenty billion, one hundred eighteen million, nine hundred sixty-one thousand, seven hundred eleven".