323131009989 has 4 divisors (see below), whose sum is σ = 430841346656. Its totient is φ = 215420673324.

The previous prime is 323131009897. The next prime is 323131010003. The reversal of 323131009989 is 989900131323.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-323131009989 is a prime.

It is a super-2 number, since 2×323131009989² (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 (323131001989) 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, 53855168329 + ... + 53855168334.

It is an arithmetic number, because the mean of its divisors is an integer number (107710336664).

Almost surely, 2^323131009989 is an apocalyptic number.

It is an amenable number.

323131009989 is a deficient number, since it is larger than the sum of its proper divisors (107710336667).

323131009989 is a wasteful number, since it uses less digits than its factorization.

323131009989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107710336666.

The product of its (nonzero) digits is 314928, while the sum is 48.

The spelling of 323131009989 in words is "three hundred twenty-three billion, one hundred thirty-one million, nine thousand, nine hundred eighty-nine".