1231112331033 has 32 divisors (see below), whose sum is σ = 1774566729600. Its totient is φ = 754688309760.

The previous prime is 1231112331019. The next prime is 1231112331049. The reversal of 1231112331033 is 3301332111321.

It is not a de Polignac number, because 1231112331033 - 2³⁰ = 1230038589209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1231112330994 and 1231112331012.

It is not an unprimeable number, because it can be changed into a prime (1231112332033) 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 31 ways as a sum of consecutive naturals, for example, 38050443 + ... + 38082783.

It is an arithmetic number, because the mean of its divisors is an integer number (55455210300).

Almost surely, 2^{1231112331033} is an apocalyptic number.

1231112331033 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1231112331033 is a deficient number, since it is larger than the sum of its proper divisors (543454398567).

1231112331033 is a wasteful number, since it uses less digits than its factorization.

1231112331033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36089.

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 1231112331033 its reverse (3301332111321), we get a palindrome (4532444442354).

The spelling of 1231112331033 in words is "one trillion, two hundred thirty-one billion, one hundred twelve million, three hundred thirty-one thousand, thirty-three".