321032311212 has 24 divisors (see below), whose sum is σ = 749385380016. Its totient is φ = 106966486528.

The previous prime is 321032311177. The next prime is 321032311273. The reversal of 321032311212 is 212113230123.

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, 5505273 + ... + 5563280.

It is an arithmetic number, because the mean of its divisors is an integer number (31224390834).

Almost surely, 2^321032311212 is an apocalyptic number.

It is an amenable number.

321032311212 is an abundant number, since it is smaller than the sum of its proper divisors (428353068804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

321032311212 is a wasteful number, since it uses less digits than its factorization.

321032311212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11070977 (or 11070975 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 321032311212 its reverse (212113230123), we get a palindrome (533145541335).

The spelling of 321032311212 in words is "three hundred twenty-one billion, thirty-two million, three hundred eleven thousand, two hundred twelve".