12354383720 has 48 divisors (see below), whose sum is σ = 32335713540. Its totient is φ = 4235788032.

The previous prime is 12354383693. The next prime is 12354383759. The reversal of 12354383720 is 2738345321.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11252542084 + 1101841636 = 106078^2 + 33194^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3149669 + ... + 3153588.

Almost surely, 2^12354383720 is an apocalyptic number.

12354383720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12354383720 is an abundant number, since it is smaller than the sum of its proper divisors (19981329820).

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

12354383720 is a wasteful number, since it uses less digits than its factorization.

12354383720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6303282 (or 6303271 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 38.

The spelling of 12354383720 in words is "twelve billion, three hundred fifty-four million, three hundred eighty-three thousand, seven hundred twenty".