311332203230132 has 72 divisors (see below), whose sum is σ = 633978831790080. Its totient is φ = 133386953515200.

The previous prime is 311332203230131. The next prime is 311332203230137. The reversal of 311332203230132 is 231032302233113.

It is a junction number, because it is equal to n+sod(n) for n = 311332203230095 and 311332203230104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311332203230131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12458757494 + ... + 12458782482.

It is an arithmetic number, because the mean of its divisors is an integer number (8805261552640).

Almost surely, 2^{311332203230132} is an apocalyptic number.

It is an amenable number.

311332203230132 is an abundant number, since it is smaller than the sum of its proper divisors (322646628559948).

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

311332203230132 is a wasteful number, since it uses less digits than its factorization.

311332203230132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42061 (or 42052 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 29.

Adding to 311332203230132 its reverse (231032302233113), we get a palindrome (542364505463245).

The spelling of 311332203230132 in words is "three hundred eleven trillion, three hundred thirty-two billion, two hundred three million, two hundred thirty thousand, one hundred thirty-two".