309043393911 has 36 divisors (see below), whose sum is σ = 519318817992. Its totient is φ = 176582002464.

The previous prime is 309043393903. The next prime is 309043393927. The reversal of 309043393911 is 119393340903.

309043393911 is a `hidden beast` number, since 30 + 90 + 433 + 93 + 9 + 11 = 666.

It is not a de Polignac number, because 309043393911 - 2³ = 309043393903 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (309043393931) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 8114365 + ... + 8152361.

It is an arithmetic number, because the mean of its divisors is an integer number (14425522722).

Almost surely, 2^309043393911 is an apocalyptic number.

309043393911 is a deficient number, since it is larger than the sum of its proper divisors (210275424081).

309043393911 is a wasteful number, since it uses less digits than its factorization.

309043393911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56460 (or 56450 counting only the distinct ones).

The product of its (nonzero) digits is 236196, while the sum is 45.

The spelling of 309043393911 in words is "three hundred nine billion, forty-three million, three hundred ninety-three thousand, nine hundred eleven".