323131 has 2 divisors, whose sum is σ = 323132. Its totient is φ = 323130.

The previous prime is 323123. The next prime is 323137. The reversal of 323131 is 131323.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 323131 - 2³ = 323123 is a prime.

It is a super-2 number, since 2×323131² = 208827286322, which contains 22 as substring.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 323131.

It is not a weakly prime, because it can be changed into another prime (323137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161565 + 161566.

It is an arithmetic number, because the mean of its divisors is an integer number (161566).

2³²³¹³¹ is an apocalyptic number.

323131 is a deficient number, since it is larger than the sum of its proper divisors (1).

323131 is an equidigital number, since it uses as much as digits as its factorization.

323131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54, while the sum is 13.

The square root of 323131 is about 568.4461276146. The cubic root of 323131 is about 68.6213948403.

Adding to 323131 its reverse (131323), we get a palindrome (454454).

It can be divided in two parts, 323 and 131, that added together give a palindrome (454).

The spelling of 323131 in words is "three hundred twenty-three thousand, one hundred thirty-one".