12120444430 has 16 divisors (see below), whose sum is σ = 21819979584. Its totient is φ = 4847471200.

The previous prime is 12120444421. The next prime is 12120444437. The reversal of 12120444430 is 3444402121.

It is a junction number, because it is equal to n+sod(n) for n = 12120444395 and 12120444404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12120444437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13237 + ... + 156256.

It is an arithmetic number, because the mean of its divisors is an integer number (1363748724).

Almost surely, 2^12120444430 is an apocalyptic number.

12120444430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12120444430 is a deficient number, since it is larger than the sum of its proper divisors (9699535154).

12120444430 is a wasteful number, since it uses less digits than its factorization.

12120444430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176651.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 12120444430 its reverse (3444402121), we get a palindrome (15564846551).

The spelling of 12120444430 in words is "twelve billion, one hundred twenty million, four hundred forty-four thousand, four hundred thirty".