12320440030 has 32 divisors (see below), whose sum is σ = 22410307584. Its totient is φ = 4876551456.

The previous prime is 12320440007. The next prime is 12320440031. The reversal of 12320440030 is 3004402321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12320440031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 355869 + ... + 388951.

It is an arithmetic number, because the mean of its divisors is an integer number (700322112).

Almost surely, 2^12320440030 is an apocalyptic number.

12320440030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12320440030 is a deficient number, since it is larger than the sum of its proper divisors (10089867554).

12320440030 is a wasteful number, since it uses less digits than its factorization.

12320440030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33480.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 12320440030 its reverse (3004402321), we get a palindrome (15324842351).

The spelling of 12320440030 in words is "twelve billion, three hundred twenty million, four hundred forty thousand, thirty".