311432030032 has 20 divisors (see below), whose sum is σ = 608739380820. Its totient is φ = 154337996288.

The previous prime is 311432030029. The next prime is 311432030047. The reversal of 311432030032 is 230030234113.

It can be written as a sum of positive squares in 2 ways, for example, as 21346378816 + 290085651216 = 146104^2 + 538596^2 .

It is a junction number, because it is equal to n+sod(n) for n = 311432029985 and 311432030012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86124307 + ... + 86127922.

It is an arithmetic number, because the mean of its divisors is an integer number (30436969041).

Almost surely, 2^311432030032 is an apocalyptic number.

It is an amenable number.

311432030032 is a deficient number, since it is larger than the sum of its proper divisors (297307350788).

311432030032 is a wasteful number, since it uses less digits than its factorization.

311432030032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172252350 (or 172252344 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 311432030032 its reverse (230030234113), we get a palindrome (541462264145).

The spelling of 311432030032 in words is "three hundred eleven billion, four hundred thirty-two million, thirty thousand, thirty-two".