311452400331 has 6 divisors (see below), whose sum is σ = 449875689380. Its totient is φ = 207634933548.

The previous prime is 311452400297. The next prime is 311452400341. The reversal of 311452400331 is 133004254113.

It is a happy number.

It is not a de Polignac number, because 311452400331 - 2¹⁵ = 311452367563 is a prime.

It is a super-2 number, since 2×311452400331² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 311452400295 and 311452400304.

It is not an unprimeable number, because it can be changed into a prime (311452400341) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17302911121 + ... + 17302911138.

Almost surely, 2^311452400331 is an apocalyptic number.

311452400331 is a deficient number, since it is larger than the sum of its proper divisors (138423289049).

311452400331 is a wasteful number, since it uses less digits than its factorization.

311452400331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34605822265 (or 34605822262 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 311452400331 its reverse (133004254113), we get a palindrome (444456654444).

The spelling of 311452400331 in words is "three hundred eleven billion, four hundred fifty-two million, four hundred thousand, three hundred thirty-one".