310405504012 has 24 divisors (see below), whose sum is σ = 543619465200. Its totient is φ = 155085712320.

The previous prime is 310405504009. The next prime is 310405504021. The reversal of 310405504012 is 210405504013.

It is a happy number.

It is a super-2 number, since 2×310405504012² (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, 42234114 + ... + 42241462.

It is an arithmetic number, because the mean of its divisors is an integer number (22650811050).

Almost surely, 2^310405504012 is an apocalyptic number.

It is an amenable number.

310405504012 is a deficient number, since it is larger than the sum of its proper divisors (233213961188).

310405504012 is a wasteful number, since it uses less digits than its factorization.

310405504012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13881 (or 13879 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

Subtracting from 310405504012 its reverse (210405504013), we obtain a palindrome (99999999999).

The spelling of 310405504012 in words is "three hundred ten billion, four hundred five million, five hundred four thousand, twelve".