12031233423 has 16 divisors (see below), whose sum is σ = 17673247872. Its totient is φ = 7219460000.

The previous prime is 12031233413. The next prime is 12031233437. The reversal of 12031233423 is 32433213021.

It is a cyclic number.

It is not a de Polignac number, because 12031233423 - 2²⁶ = 11964124559 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12031233393 and 12031233402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12031233413) 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, 1801533 + ... + 1808198.

It is an arithmetic number, because the mean of its divisors is an integer number (1104577992).

Almost surely, 2^12031233423 is an apocalyptic number.

12031233423 is a deficient number, since it is larger than the sum of its proper divisors (5642014449).

12031233423 is a wasteful number, since it uses less digits than its factorization.

12031233423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3609846.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 12031233423 its reverse (32433213021), we get a palindrome (44464446444).

It can be divided in two parts, 120312 and 33423, that added together give a triangular number (153735 = T₅₅₄).

The spelling of 12031233423 in words is "twelve billion, thirty-one million, two hundred thirty-three thousand, four hundred twenty-three".