311122023132 has 48 divisors (see below), whose sum is σ = 758369106432. Its totient is φ = 99086412480.

The previous prime is 311122023101. The next prime is 311122023161. The reversal of 311122023132 is 231320221113.

It is a junction number, because it is equal to n+sod(n) for n = 311122023099 and 311122023108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 390619 + ... + 880242.

It is an arithmetic number, because the mean of its divisors is an integer number (15799356384).

Almost surely, 2^311122023132 is an apocalyptic number.

It is an amenable number.

311122023132 is an abundant number, since it is smaller than the sum of its proper divisors (447247083300).

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

311122023132 is a wasteful number, since it uses less digits than its factorization.

311122023132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1271778 (or 1271776 counting only the distinct ones).

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

Adding to 311122023132 its reverse (231320221113), we get a palindrome (542442244245).

The spelling of 311122023132 in words is "three hundred eleven billion, one hundred twenty-two million, twenty-three thousand, one hundred thirty-two".