12423431724 has 24 divisors (see below), whose sum is σ = 31623281088. Its totient is φ = 3764676240.

The previous prime is 12423431723. The next prime is 12423431743. The reversal of 12423431724 is 42713432421.

It is a happy number.

12423431724 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12423431724² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (12423431723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47058322 + ... + 47058585.

It is an arithmetic number, because the mean of its divisors is an integer number (1317636712).

Almost surely, 2^12423431724 is an apocalyptic number.

It is an amenable number.

12423431724 is an abundant number, since it is smaller than the sum of its proper divisors (19199849364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12423431724 is a wasteful number, since it uses less digits than its factorization.

12423431724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94116925 (or 94116923 counting only the distinct ones).

The product of its digits is 32256, while the sum is 33.

The spelling of 12423431724 in words is "twelve billion, four hundred twenty-three million, four hundred thirty-one thousand, seven hundred twenty-four".