323131011331 has 4 divisors (see below), whose sum is σ = 323155651464. Its totient is φ = 323106371200.

The previous prime is 323131011323. The next prime is 323131011353. The reversal of 323131011331 is 133110131323.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 133110131323 = 13 ⋅10239240871.

It is a cyclic number.

It is not a de Polignac number, because 323131011331 - 2³ = 323131011323 is a prime.

It is a super-3 number, since 3×323131011331³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (323131071331) 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, 12300385 + ... + 12326626.

It is an arithmetic number, because the mean of its divisors is an integer number (80788912866).

Almost surely, 2^323131011331 is an apocalyptic number.

323131011331 is a deficient number, since it is larger than the sum of its proper divisors (24640133).

323131011331 is a wasteful number, since it uses less digits than its factorization.

323131011331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24640132.

The product of its (nonzero) digits is 486, while the sum is 22.

Adding to 323131011331 its reverse (133110131323), we get a palindrome (456241142654).

The spelling of 323131011331 in words is "three hundred twenty-three billion, one hundred thirty-one million, eleven thousand, three hundred thirty-one".