321430331212012 has 24 divisors (see below), whose sum is σ = 615808061491392. Its totient is φ = 145588424989200.

The previous prime is 321430331211991. The next prime is 321430331212027. The reversal of 321430331212012 is 210212133034123.

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, 12906762814 + ... + 12906787717.

It is an arithmetic number, because the mean of its divisors is an integer number (25658669228808).

Almost surely, 2^{321430331212012} is an apocalyptic number.

It is an amenable number.

321430331212012 is a deficient number, since it is larger than the sum of its proper divisors (294377730279380).

321430331212012 is a wasteful number, since it uses less digits than its factorization.

321430331212012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25813550829 (or 25813550827 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 321430331212012 its reverse (210212133034123), we get a palindrome (531642464246135).

The spelling of 321430331212012 in words is "three hundred twenty-one trillion, four hundred thirty billion, three hundred thirty-one million, two hundred twelve thousand, twelve".