313322131541 has 4 divisors (see below), whose sum is σ = 313801951692. Its totient is φ = 312842311392.

The previous prime is 313322131531. The next prime is 313322131547. The reversal of 313322131541 is 145131223313.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 87574564900 + 225747566641 = 295930^2 + 475129^2 .

It is a cyclic number.

It is not a de Polignac number, because 313322131541 - 2²² = 313317937237 is a prime.

It is a super-2 number, since 2×313322131541² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313322131547) 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, 239909096 + ... + 239910401.

It is an arithmetic number, because the mean of its divisors is an integer number (78450487923).

Almost surely, 2^313322131541 is an apocalyptic number.

It is an amenable number.

313322131541 is a deficient number, since it is larger than the sum of its proper divisors (479820151).

313322131541 is an equidigital number, since it uses as much as digits as its factorization.

313322131541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479820150.

The product of its digits is 6480, while the sum is 29.

Adding to 313322131541 its reverse (145131223313), we get a palindrome (458453354854).

The spelling of 313322131541 in words is "three hundred thirteen billion, three hundred twenty-two million, one hundred thirty-one thousand, five hundred forty-one".