312132331 has 8 divisors (see below), whose sum is σ = 357154560. Its totient is φ = 267218088.

The previous prime is 312132299. The next prime is 312132341. The reversal of 312132331 is 133231213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 312132331 - 2⁵ = 312132299 is a prime.

It is a super-2 number, since 2×312132331² = 194853184110987122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 312132299 and 312132308.

It is not an unprimeable number, because it can be changed into a prime (312132341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20701 + ... + 32446.

It is an arithmetic number, because the mean of its divisors is an integer number (44644320).

Almost surely, 2^312132331 is an apocalyptic number.

312132331 is a deficient number, since it is larger than the sum of its proper divisors (45022229).

312132331 is an equidigital number, since it uses as much as digits as its factorization.

312132331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53993.

The product of its digits is 324, while the sum is 19.

The square root of 312132331 is about 17667.2672193523. The cubic root of 312132331 is about 678.3381644513.

Adding to 312132331 its reverse (133231213), we get a palindrome (445363544).

The spelling of 312132331 in words is "three hundred twelve million, one hundred thirty-two thousand, three hundred thirty-one".