1231131233333 has 8 divisors (see below), whose sum is σ = 1232929006080. Its totient is φ = 1229334714720.

The previous prime is 1231131233309. The next prime is 1231131233341. The reversal of 1231131233333 is 3333321311321.

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

It is a cyclic number.

It is not a de Polignac number, because 1231131233333 - 2²⁸ = 1230862797877 is a prime.

It is a super-2 number, since 2×1231131233333² (a number of 25 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 = 1231131233296 and 1231131233305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231131253333) 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, 1660268 + ... + 2284458.

It is an arithmetic number, because the mean of its divisors is an integer number (154116125760).

Almost surely, 2^{1231131233333} is an apocalyptic number.

It is an amenable number.

1231131233333 is a deficient number, since it is larger than the sum of its proper divisors (1797772747).

1231131233333 is a wasteful number, since it uses less digits than its factorization.

1231131233333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627067.

The product of its digits is 8748, while the sum is 29.

Adding to 1231131233333 its reverse (3333321311321), we get a palindrome (4564452544654).

The spelling of 1231131233333 in words is "one trillion, two hundred thirty-one billion, one hundred thirty-one million, two hundred thirty-three thousand, three hundred thirty-three".