315145433313 has 12 divisors (see below), whose sum is σ = 455216686548. Its totient is φ = 210093901920.

The previous prime is 315145433311. The next prime is 315145433341. The reversal of 315145433313 is 313334541513.

It is a happy number.

315145433313 is a `hidden beast` number, since 3 + 151 + 45 + 433 + 31 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 239887387089 + 75258046224 = 489783^2 + 274332^2 .

It is not a de Polignac number, because 315145433313 - 2¹ = 315145433311 is a prime.

It is not an unprimeable number, because it can be changed into a prime (315145433311) 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, 524731 + ... + 951647.

It is an arithmetic number, because the mean of its divisors is an integer number (37934723879).

Almost surely, 2^315145433313 is an apocalyptic number.

It is an amenable number.

315145433313 is a deficient number, since it is larger than the sum of its proper divisors (140071253235).

315145433313 is a wasteful number, since it uses less digits than its factorization.

315145433313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508944 (or 508941 counting only the distinct ones).

The product of its digits is 97200, while the sum is 36.

Adding to 315145433313 its reverse (313334541513), we get a palindrome (628479974826).

The spelling of 315145433313 in words is "three hundred fifteen billion, one hundred forty-five million, four hundred thirty-three thousand, three hundred thirteen".