12320044340 has 96 divisors (see below), whose sum is σ = 26720039808. Its totient is φ = 4769856000.

The previous prime is 12320044309. The next prime is 12320044409. The reversal of 12320044340 is 4344002321.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25091495 + ... + 25091985.

It is an arithmetic number, because the mean of its divisors is an integer number (278333748).

Almost surely, 2^12320044340 is an apocalyptic number.

12320044340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12320044340 is an abundant number, since it is smaller than the sum of its proper divisors (14399995468).

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

12320044340 is a wasteful number, since it uses less digits than its factorization.

12320044340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849 (or 847 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 12320044340 its reverse (4344002321), we get a palindrome (16664046661).

The spelling of 12320044340 in words is "twelve billion, three hundred twenty million, forty-four thousand, three hundred forty".