12423460720 has 80 divisors (see below), whose sum is σ = 31954383360. Its totient is φ = 4453971200.

The previous prime is 12423460657. The next prime is 12423460723. The reversal of 12423460720 is 2706432421.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×12423460720² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12423460723) 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, 36940 + ... + 161899.

It is an arithmetic number, because the mean of its divisors is an integer number (399429792).

Almost surely, 2^12423460720 is an apocalyptic number.

12423460720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12423460720 is an abundant number, since it is smaller than the sum of its proper divisors (19530922640).

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

12423460720 is a wasteful number, since it uses less digits than its factorization.

12423460720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198934 (or 198928 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 31.

The spelling of 12423460720 in words is "twelve billion, four hundred twenty-three million, four hundred sixty thousand, seven hundred twenty".