12344353520 has 80 divisors (see below), whose sum is σ = 28906042752. Its totient is φ = 4902543360.

The previous prime is 12344353457. The next prime is 12344353589. The reversal of 12344353520 is 2535344321.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7652234 + ... + 7653846.

Almost surely, 2^12344353520 is an apocalyptic number.

12344353520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12344353520 is an abundant number, since it is smaller than the sum of its proper divisors (16561689232).

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

12344353520 is a wasteful number, since it uses less digits than its factorization.

12344353520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2250 (or 2244 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 32.

Adding to 12344353520 its reverse (2535344321), we get a palindrome (14879697841).

The spelling of 12344353520 in words is "twelve billion, three hundred forty-four million, three hundred fifty-three thousand, five hundred twenty".