312113133 has 24 divisors (see below), whose sum is σ = 478214880. Its totient is φ = 195605280.

The previous prime is 312113111. The next prime is 312113141. The reversal of 312113133 is 331311213.

It is a happy number.

It is not a de Polignac number, because 312113133 - 2⁵ = 312113101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312513133) 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, 15435 + ... + 29367.

It is an arithmetic number, because the mean of its divisors is an integer number (19925620).

Almost surely, 2^312113133 is an apocalyptic number.

It is an amenable number.

312113133 is a deficient number, since it is larger than the sum of its proper divisors (166101747).

312113133 is a wasteful number, since it uses less digits than its factorization.

312113133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14089 (or 14086 counting only the distinct ones).

The product of its digits is 162, while the sum is 18.

The square root of 312113133 is about 17666.7238898444. The cubic root of 312113133 is about 678.3242568852.

Adding to 312113133 its reverse (331311213), we get a palindrome (643424346).

The spelling of 312113133 in words is "three hundred twelve million, one hundred thirteen thousand, one hundred thirty-three".