231333132131322 has 64 divisors (see below), whose sum is σ = 500163169524480. Its totient is φ = 70906982920704.

The previous prime is 231333132131291. The next prime is 231333132131393. The reversal of 231333132131322 is 223131231333132.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 968900454 + ... + 969139182.

It is an arithmetic number, because the mean of its divisors is an integer number (7815049523820).

Almost surely, 2^{231333132131322} is an apocalyptic number.

231333132131322 is an abundant number, since it is smaller than the sum of its proper divisors (268830037393158).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231333132131322 is a wasteful number, since it uses less digits than its factorization.

231333132131322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286247.

The product of its digits is 34992, while the sum is 33.

Adding to 231333132131322 its reverse (223131231333132), we get a palindrome (454464363464454).

The spelling of 231333132131322 in words is "two hundred thirty-one trillion, three hundred thirty-three billion, one hundred thirty-two million, one hundred thirty-one thousand, three hundred twenty-two".