315225530331 has 4 divisors (see below), whose sum is σ = 420300707112. Its totient is φ = 210150353552.

The previous prime is 315225530311. The next prime is 315225530339. The reversal of 315225530331 is 133035522513.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 133035522513 = 3 ⋅44345174171.

It is a cyclic number.

It is not a de Polignac number, because 315225530331 - 2¹⁹ = 315225006043 is a prime.

It is a super-2 number, since 2×315225530331² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 315225530292 and 315225530301.

It is not an unprimeable number, because it can be changed into a prime (315225530339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52537588386 + ... + 52537588391.

It is an arithmetic number, because the mean of its divisors is an integer number (105075176778).

Almost surely, 2^315225530331 is an apocalyptic number.

315225530331 is a deficient number, since it is larger than the sum of its proper divisors (105075176781).

315225530331 is a wasteful number, since it uses less digits than its factorization.

315225530331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105075176780.

The product of its (nonzero) digits is 40500, while the sum is 33.

The spelling of 315225530331 in words is "three hundred fifteen billion, two hundred twenty-five million, five hundred thirty thousand, three hundred thirty-one".