323231232131131 has 4 divisors (see below), whose sum is σ = 326863043728200. Its totient is φ = 319599420534064.

The previous prime is 323231232131111. The next prime is 323231232131141. The reversal of 323231232131131 is 131131232132323.

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 323231232131131 - 2²¹ = 323231230033979 is a prime.

It is a super-2 number, since 2×323231232131131² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 323231232131093 and 323231232131102.

It is not an unprimeable number, because it can be changed into a prime (323231232131111) 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, 1815905798401 + ... + 1815905798578.

It is an arithmetic number, because the mean of its divisors is an integer number (81715760932050).

Almost surely, 2^{323231232131131} is an apocalyptic number.

323231232131131 is a deficient number, since it is larger than the sum of its proper divisors (3631811597069).

323231232131131 is an equidigital number, since it uses as much as digits as its factorization.

323231232131131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3631811597068.

The product of its digits is 11664, while the sum is 31.

Adding to 323231232131131 its reverse (131131232132323), we get a palindrome (454362464263454).

The spelling of 323231232131131 in words is "three hundred twenty-three trillion, two hundred thirty-one billion, two hundred thirty-two million, one hundred thirty-one thousand, one hundred thirty-one".