323220302131 has 4 divisors (see below), whose sum is σ = 340231897000. Its totient is φ = 306208707264.

The previous prime is 323220302107. The next prime is 323220302149. The reversal of 323220302131 is 131203022323.

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

It is a cyclic number.

It is not a de Polignac number, because 323220302131 - 2⁷ = 323220302003 is a prime.

It is a super-2 number, since 2×323220302131² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (323220302161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8505797406 + ... + 8505797443.

It is an arithmetic number, because the mean of its divisors is an integer number (85057974250).

Almost surely, 2^323220302131 is an apocalyptic number.

323220302131 is a deficient number, since it is larger than the sum of its proper divisors (17011594869).

323220302131 is a wasteful number, since it uses less digits than its factorization.

323220302131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17011594868.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 323220302131 its reverse (131203022323), we get a palindrome (454423324454).

The spelling of 323220302131 in words is "three hundred twenty-three billion, two hundred twenty million, three hundred two thousand, one hundred thirty-one".