168912311 has 2 divisors, whose sum is σ = 168912312. Its totient is φ = 168912310.

The previous prime is 168912301. The next prime is 168912353. The reversal of 168912311 is 113219861.

168912311 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 168912311 - 2¹⁴ = 168895927 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (168912301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84456155 + 84456156.

It is an arithmetic number, because the mean of its divisors is an integer number (84456156).

Almost surely, 2^168912311 is an apocalyptic number.

168912311 is a deficient number, since it is larger than the sum of its proper divisors (1).

168912311 is an equidigital number, since it uses as much as digits as its factorization.

168912311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 32.

The square root of 168912311 is about 12996.6269085482. The cubic root of 168912311 is about 552.7818410108.

The spelling of 168912311 in words is "one hundred sixty-eight million, nine hundred twelve thousand, three hundred eleven".