1231131232333 has 16 divisors (see below), whose sum is σ = 1269864161280. Its totient is φ = 1192926867696.

The previous prime is 1231131232283. The next prime is 1231131232337. The reversal of 1231131232333 is 3332321311321.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1231131232333 is a prime.

It is a super-2 number, since 2×1231131232333² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231131232337) 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 15 ways as a sum of consecutive naturals, for example, 19715266 + ... + 19777612.

It is an arithmetic number, because the mean of its divisors is an integer number (79366510080).

Almost surely, 2^{1231131232333} is an apocalyptic number.

It is an amenable number.

1231131232333 is a deficient number, since it is larger than the sum of its proper divisors (38732928947).

1231131232333 is a wasteful number, since it uses less digits than its factorization.

1231131232333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66576.

The product of its digits is 5832, while the sum is 28.

Adding to 1231131232333 its reverse (3332321311321), we get a palindrome (4563452543654).

The spelling of 1231131232333 in words is "one trillion, two hundred thirty-one billion, one hundred thirty-one million, two hundred thirty-two thousand, three hundred thirty-three".