12121113130 has 64 divisors (see below), whose sum is σ = 25238274048. Its totient is φ = 4105442880.

The previous prime is 12121113079. The next prime is 12121113133. The reversal of 12121113130 is 3131112121.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12121113133) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3336415 + ... + 3340045.

It is an arithmetic number, because the mean of its divisors is an integer number (394348032).

Almost surely, 2^12121113130 is an apocalyptic number.

12121113130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12121113130 is an abundant number, since it is smaller than the sum of its proper divisors (13117160918).

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

12121113130 is a wasteful number, since it uses less digits than its factorization.

12121113130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4211.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 12121113130 its reverse (3131112121), we get a palindrome (15252225251).

The spelling of 12121113130 in words is "twelve billion, one hundred twenty-one million, one hundred thirteen thousand, one hundred thirty".