312311361 has 8 divisors (see below), whose sum is σ = 416718400. Its totient is φ = 208055952.

The previous prime is 312311359. The next prime is 312311371. The reversal of 312311361 is 163113213.

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

It is not a de Polignac number, because 312311361 - 2¹ = 312311359 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312311371) 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, 33010 + ... + 41403.

It is an arithmetic number, because the mean of its divisors is an integer number (52089800).

Almost surely, 2^312311361 is an apocalyptic number.

It is an amenable number.

312311361 is a deficient number, since it is larger than the sum of its proper divisors (104407039).

312311361 is a wasteful number, since it uses less digits than its factorization.

312311361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75815.

The product of its digits is 324, while the sum is 21.

The square root of 312311361 is about 17672.3332075875. Note that the first 3 decimals coincide. The cubic root of 312311361 is about 678.4678313246.

Adding to 312311361 its reverse (163113213), we get a palindrome (475424574).

The spelling of 312311361 in words is "three hundred twelve million, three hundred eleven thousand, three hundred sixty-one".