309418551122 has 6 divisors (see below), whose sum is σ = 464129006679. Its totient is φ = 154708882230.

The previous prime is 309418551121. The next prime is 309418551149. The reversal of 309418551122 is 221155814903.

It can be written as a sum of positive squares in only one way, i.e., 154709275561 + 154709275561 = 393331^2 + 393331^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=393331.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 309418551122.

It is not an unprimeable number, because it can be changed into a prime (309418551121) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 589997 + ... + 983327.

Almost surely, 2^309418551122 is an apocalyptic number.

309418551122 is a deficient number, since it is larger than the sum of its proper divisors (154710455557).

309418551122 is an frugal number, since it uses more digits than its factorization.

309418551122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 786664 (or 393333 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 41.

The spelling of 309418551122 in words is "three hundred nine billion, four hundred eighteen million, five hundred fifty-one thousand, one hundred twenty-two".