12720111130 has 16 divisors (see below), whose sum is σ = 23891687424. Its totient is φ = 4866825040.

The previous prime is 12720111083. The next prime is 12720111137. The reversal of 12720111130 is 3111102721.

It is a junction number, because it is equal to n+sod(n) for n = 12720111098 and 12720111107.

It is not an unprimeable number, because it can be changed into a prime (12720111137) 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, 27652186 + ... + 27652645.

It is an arithmetic number, because the mean of its divisors is an integer number (1493230464).

Almost surely, 2^12720111130 is an apocalyptic number.

12720111130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12720111130 is a deficient number, since it is larger than the sum of its proper divisors (11171576294).

12720111130 is a wasteful number, since it uses less digits than its factorization.

12720111130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55304861.

The product of its (nonzero) digits is 84, while the sum is 19.

Adding to 12720111130 its reverse (3111102721), we get a palindrome (15831213851).

The spelling of 12720111130 in words is "twelve billion, seven hundred twenty million, one hundred eleven thousand, one hundred thirty".