311322003212 has 48 divisors (see below), whose sum is σ = 602160168960. Its totient is φ = 139660214400.

The previous prime is 311322003211. The next prime is 311322003227. The reversal of 311322003212 is 212300223113.

It is not an unprimeable number, because it can be changed into a prime (311322003211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 921464 + ... + 1213152.

It is an arithmetic number, because the mean of its divisors is an integer number (12545003520).

Almost surely, 2^311322003212 is an apocalyptic number.

It is an amenable number.

311322003212 is a deficient number, since it is larger than the sum of its proper divisors (290838165748).

311322003212 is a wasteful number, since it uses less digits than its factorization.

311322003212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292022 (or 292020 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 311322003212 its reverse (212300223113), we get a palindrome (523622226325).

The spelling of 311322003212 in words is "three hundred eleven billion, three hundred twenty-two million, three thousand, two hundred twelve".