315320135151231 has 12 divisors (see below), whose sum is σ = 520528477075152. Its totient is φ = 180182934372096.

The previous prime is 315320135151193. The next prime is 315320135151353. The reversal of 315320135151231 is 132151531023513.

315320135151231 is a `hidden beast` number, since 3 + 1 + 5 + 3 + 2 + 0 + 13 + 515 + 123 + 1 = 666.

It is not a de Polignac number, because 315320135151231 - 2¹⁵ = 315320135118463 is a prime.

It is a super-2 number, since 2×315320135151231² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315320135151631) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2502540755106 + ... + 2502540755231.

It is an arithmetic number, because the mean of its divisors is an integer number (43377373089596).

Almost surely, 2^{315320135151231} is an apocalyptic number.

315320135151231 is a deficient number, since it is larger than the sum of its proper divisors (205208341923921).

315320135151231 is a wasteful number, since it uses less digits than its factorization.

315320135151231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5005081510350 (or 5005081510347 counting only the distinct ones).

The product of its (nonzero) digits is 40500, while the sum is 36.

Adding to 315320135151231 its reverse (132151531023513), we get a palindrome (447471666174744).

The spelling of 315320135151231 in words is "three hundred fifteen trillion, three hundred twenty billion, one hundred thirty-five million, one hundred fifty-one thousand, two hundred thirty-one".