312142311 has 12 divisors (see below), whose sum is σ = 485554888. Its totient is φ = 192087504.

The previous prime is 312142309. The next prime is 312142331. The reversal of 312142311 is 113241213.

312142311 is a `hidden beast` number, since 312 + 1 + 42 + 311 = 666.

It is not a de Polignac number, because 312142311 - 2¹ = 312142309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312142331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1333825 + ... + 1334058.

Almost surely, 2^312142311 is an apocalyptic number.

312142311 is a deficient number, since it is larger than the sum of its proper divisors (173412577).

312142311 is a wasteful number, since it uses less digits than its factorization.

312142311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2667902 (or 2667899 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 312142311 is about 17667.5496603236. The cubic root of 312142311 is about 678.3453940161.

Adding to 312142311 its reverse (113241213), we get a palindrome (425383524).

The spelling of 312142311 in words is "three hundred twelve million, one hundred forty-two thousand, three hundred eleven".