311201112232 has 16 divisors (see below), whose sum is σ = 583508049300. Its totient is φ = 155598965760.

The previous prime is 311201112223. The next prime is 311201112239. The reversal of 311201112232 is 232211102113.

It can be written as a sum of positive squares in 2 ways, for example, as 264230953156 + 46970159076 = 514034^2 + 216726^2 .

It is a super-2 number, since 2×311201112232² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (311201112239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1279432 + ... + 1503112.

Almost surely, 2^311201112232 is an apocalyptic number.

It is an amenable number.

311201112232 is a deficient number, since it is larger than the sum of its proper divisors (272306937068).

311201112232 is a wasteful number, since it uses less digits than its factorization.

311201112232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397596 (or 397592 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 311201112232 its reverse (232211102113), we get a palindrome (543412214345).

The spelling of 311201112232 in words is "three hundred eleven billion, two hundred one million, one hundred twelve thousand, two hundred thirty-two".