323315131 has 2 divisors, whose sum is σ = 323315132. Its totient is φ = 323315130.

The previous prime is 323315119. The next prime is 323315141. The reversal of 323315131 is 131513323.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (131513323) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 323315131 - 2⁵ = 323315099 is a prime.

It is a super-2 number, since 2×323315131² = 209065347867094322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (323315141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161657565 + 161657566.

It is an arithmetic number, because the mean of its divisors is an integer number (161657566).

Almost surely, 2^323315131 is an apocalyptic number.

323315131 is a deficient number, since it is larger than the sum of its proper divisors (1).

323315131 is an equidigital number, since it uses as much as digits as its factorization.

323315131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 810, while the sum is 22.

The square root of 323315131 is about 17980.9657971979. The cubic root of 323315131 is about 686.3442663109.

Adding to 323315131 its reverse (131513323), we get a palindrome (454828454).

The spelling of 323315131 in words is "three hundred twenty-three million, three hundred fifteen thousand, one hundred thirty-one".