323151213 has 32 divisors (see below), whose sum is σ = 538140672. Its totient is φ = 167572800.

The previous prime is 323151211. The next prime is 323151239. The reversal of 323151213 is 312151323.

It is not a de Polignac number, because 323151213 - 2¹ = 323151211 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 323151213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323151211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 198543 + ... + 200163.

It is an arithmetic number, because the mean of its divisors is an integer number (16816896).

Almost surely, 2^323151213 is an apocalyptic number.

323151213 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

323151213 is a deficient number, since it is larger than the sum of its proper divisors (214989459).

323151213 is a wasteful number, since it uses less digits than its factorization.

323151213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2505.

The product of its digits is 540, while the sum is 21.

The square root of 323151213 is about 17976.4071215580. The cubic root of 323151213 is about 686.2282564834.

Adding to 323151213 its product of digits (540), we get a triangular number (323151753 = T₂₅₄₂₂).

The spelling of 323151213 in words is "three hundred twenty-three million, one hundred fifty-one thousand, two hundred thirteen".