12300321233440 has 48 divisors (see below), whose sum is σ = 29060251644312. Its totient is φ = 4920002740224.

The previous prime is 12300321233413. The next prime is 12300321233531. The reversal of 12300321233440 is 4433212300321.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8664145154064 + 3636176079376 = 2943492^2 + 1906876^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12300321233399 and 12300321233408.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5427442 + ... + 7352398.

Almost surely, 2^{12300321233440} is an apocalyptic number.

12300321233440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12300321233440 is an abundant number, since it is smaller than the sum of its proper divisors (16759930410872).

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

12300321233440 is a wasteful number, since it uses less digits than its factorization.

12300321233440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1964909 (or 1964901 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 12300321233440 its reverse (4433212300321), we get a palindrome (16733533533761).

The spelling of 12300321233440 in words is "twelve trillion, three hundred billion, three hundred twenty-one million, two hundred thirty-three thousand, four hundred forty".