1231233302331 has 48 divisors (see below), whose sum is σ = 1852592901120. Its totient is φ = 787118472000.

The previous prime is 1231233302311. The next prime is 1231233302381. The reversal of 1231233302331 is 1332033321321.

1231233302331 is a `hidden beast` number, since 1 + 2 + 3 + 1 + 23 + 3 + 302 + 331 = 666.

It is not a de Polignac number, because 1231233302331 - 2⁶ = 1231233302267 is a prime.

It is a super-2 number, since 2×1231233302331² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1231233302295 and 1231233302304.

It is not an unprimeable number, because it can be changed into a prime (1231233302311) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13435336 + ... + 13526666.

It is an arithmetic number, because the mean of its divisors is an integer number (38595685440).

Almost surely, 2^{1231233302331} is an apocalyptic number.

1231233302331 is a deficient number, since it is larger than the sum of its proper divisors (621359598789).

1231233302331 is a wasteful number, since it uses less digits than its factorization.

1231233302331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91808 (or 91805 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 27.

Adding to 1231233302331 its reverse (1332033321321), we get a palindrome (2563266623652).

The spelling of 1231233302331 in words is "one trillion, two hundred thirty-one billion, two hundred thirty-three million, three hundred two thousand, three hundred thirty-one".