313243215025 has 24 divisors (see below), whose sum is σ = 421353516024. Its totient is φ = 229629580800.

The previous prime is 313243215023. The next prime is 313243215059. The reversal of 313243215025 is 520512342313.

It can be written as a sum of positive squares in 12 ways, for example, as 241843634176 + 71399580849 = 491776^2 + 267207^2 .

It is not a de Polignac number, because 313243215025 - 2¹ = 313243215023 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313243215023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3473086 + ... + 3562135.

It is an arithmetic number, because the mean of its divisors is an integer number (17556396501).

Almost surely, 2^313243215025 is an apocalyptic number.

It is an amenable number.

313243215025 is a deficient number, since it is larger than the sum of its proper divisors (108110300999).

313243215025 is a wasteful number, since it uses less digits than its factorization.

313243215025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7035381 (or 7035376 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 313243215025 its reverse (520512342313), we get a palindrome (833755557338).

The spelling of 313243215025 in words is "three hundred thirteen billion, two hundred forty-three million, two hundred fifteen thousand, twenty-five".