311212112124 has 24 divisors (see below), whose sum is σ = 726456971520. Its totient is φ = 103695174064.

The previous prime is 311212112087. The next prime is 311212112153. The reversal of 311212112124 is 421211212113.

It is a super-2 number, since 2×311212112124² (a number of 24 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 311212112124.

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, 5243844 + ... + 5302859.

It is an arithmetic number, because the mean of its divisors is an integer number (30269040480).

Almost surely, 2^311212112124 is an apocalyptic number.

It is an amenable number.

311212112124 is an abundant number, since it is smaller than the sum of its proper divisors (415244859396).

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

311212112124 is a wasteful number, since it uses less digits than its factorization.

311212112124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10549169 (or 10549167 counting only the distinct ones).

The product of its digits is 192, while the sum is 21.

Adding to 311212112124 its reverse (421211212113), we get a palindrome (732423324237).

The spelling of 311212112124 in words is "three hundred eleven billion, two hundred twelve million, one hundred twelve thousand, one hundred twenty-four".