309318139034 has 16 divisors (see below), whose sum is σ = 464348908608. Its totient is φ = 154535224032.

The previous prime is 309318139027. The next prime is 309318139069. The reversal of 309318139034 is 430931813903.

It is a happy number.

It is a super-2 number, since 2×309318139034² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14085467 + ... + 14107409.

It is an arithmetic number, because the mean of its divisors is an integer number (29021806788).

Almost surely, 2^309318139034 is an apocalyptic number.

309318139034 is a deficient number, since it is larger than the sum of its proper divisors (155030769574).

309318139034 is a wasteful number, since it uses less digits than its factorization.

309318139034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27269.

The product of its (nonzero) digits is 209952, while the sum is 44.

The spelling of 309318139034 in words is "three hundred nine billion, three hundred eighteen million, one hundred thirty-nine thousand, thirty-four".