315042311 has 4 divisors (see below), whose sum is σ = 315165312. Its totient is φ = 314919312.

The previous prime is 315042251. The next prime is 315042337. The reversal of 315042311 is 113240513.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 113240513 = 19 ⋅5960027.

It is not a de Polignac number, because 315042311 - 2²⁶ = 247933447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315048311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57575 + ... + 62808.

It is an arithmetic number, because the mean of its divisors is an integer number (78791328).

Almost surely, 2^315042311 is an apocalyptic number.

315042311 is a deficient number, since it is larger than the sum of its proper divisors (123001).

315042311 is a wasteful number, since it uses less digits than its factorization.

315042311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123000.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 315042311 is about 17749.4312866638. The cubic root of 315042311 is about 680.4396745639.

Adding to 315042311 its reverse (113240513), we get a palindrome (428282824).

The spelling of 315042311 in words is "three hundred fifteen million, forty-two thousand, three hundred eleven".