1231112004423 has 16 divisors (see below), whose sum is σ = 1876183806720. Its totient is φ = 703416220416.

The previous prime is 1231112004413. The next prime is 1231112004469. The reversal of 1231112004423 is 3244002111321.

It is not a de Polignac number, because 1231112004423 - 2²⁶ = 1231044895559 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1231112004393 and 1231112004402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231112004413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2983018 + ... + 3370551.

It is an arithmetic number, because the mean of its divisors is an integer number (117261487920).

Almost surely, 2^{1231112004423} is an apocalyptic number.

1231112004423 is a deficient number, since it is larger than the sum of its proper divisors (645071802297).

1231112004423 is an equidigital number, since it uses as much as digits as its factorization.

1231112004423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6362806.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 1231112004423 its reverse (3244002111321), we get a palindrome (4475114115744).

The spelling of 1231112004423 in words is "one trillion, two hundred thirty-one billion, one hundred twelve million, four thousand, four hundred twenty-three".