311232311012 has 24 divisors (see below), whose sum is σ = 655225919040. Its totient is φ = 126364998240.

The previous prime is 311232310981. The next prime is 311232311021. The reversal of 311232311012 is 210113232113.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 292511039 + ... + 292512102.

It is an arithmetic number, because the mean of its divisors is an integer number (27301079960).

Almost surely, 2^311232311012 is an apocalyptic number.

It is an amenable number.

311232311012 is an abundant number, since it is smaller than the sum of its proper divisors (343993608028).

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

311232311012 is a wasteful number, since it uses less digits than its factorization.

311232311012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585023171 (or 585023169 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 311232311012 its reverse (210113232113), we get a palindrome (521345543125).

The spelling of 311232311012 in words is "three hundred eleven billion, two hundred thirty-two million, three hundred eleven thousand, twelve".