311201023212312 has 32 divisors (see below), whose sum is σ = 791189042068800. Its totient is φ = 101975476532384.

The previous prime is 311201023212269. The next prime is 311201023212329. The reversal of 311201023212312 is 213212320102113.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

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, 109887365538 + ... + 109887368369.

It is an arithmetic number, because the mean of its divisors is an integer number (24724657564650).

Almost surely, 2^{311201023212312} is an apocalyptic number.

It is an amenable number.

311201023212312 is an abundant number, since it is smaller than the sum of its proper divisors (479988018856488).

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

311201023212312 is a wasteful number, since it uses less digits than its factorization.

311201023212312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219774733975 (or 219774733971 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 311201023212312 its reverse (213212320102113), we get a palindrome (524413343314425).

The spelling of 311201023212312 in words is "three hundred eleven trillion, two hundred one billion, twenty-three million, two hundred twelve thousand, three hundred twelve".