12320441400 has 48 divisors (see below), whose sum is σ = 38193370200. Its totient is φ = 3285450880.

The previous prime is 12320441381. The next prime is 12320441437. The reversal of 12320441400 is 414402321.

It is a congruent number.

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, 10266435 + ... + 10267634.

Almost surely, 2^12320441400 is an apocalyptic number.

12320441400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12320441400 is an abundant number, since it is smaller than the sum of its proper divisors (25872928800).

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

12320441400 is a wasteful number, since it uses less digits than its factorization.

12320441400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20534088 (or 20534079 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 12320441400 its reverse (414402321), we get a palindrome (12734843721).

The spelling of 12320441400 in words is "twelve billion, three hundred twenty million, four hundred forty-one thousand, four hundred".