1231333232331 has 8 divisors (see below), whose sum is σ = 1656839823760. Its totient is φ = 813357731232.

The previous prime is 1231333232309. The next prime is 1231333232333. The reversal of 1231333232331 is 1332323331321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1231333232331 - 2⁷ = 1231333232203 is a prime.

It is a super-2 number, since 2×1231333232331² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1231333232333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1882772200 + ... + 1882772853.

It is an arithmetic number, because the mean of its divisors is an integer number (207104977970).

Almost surely, 2^{1231333232331} is an apocalyptic number.

1231333232331 is a deficient number, since it is larger than the sum of its proper divisors (425506591429).

1231333232331 is a wasteful number, since it uses less digits than its factorization.

1231333232331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3765545165.

The product of its digits is 17496, while the sum is 30.

Adding to 1231333232331 its reverse (1332323331321), we get a palindrome (2563656563652).

The spelling of 1231333232331 in words is "one trillion, two hundred thirty-one billion, three hundred thirty-three million, two hundred thirty-two thousand, three hundred thirty-one".