12102113980 has 24 divisors (see below), whose sum is σ = 27724843440. Its totient is φ = 4400768640.

The previous prime is 12102113953. The next prime is 12102113981. The reversal of 12102113980 is 8931120121.

It is a super-2 number, since 2×12102113980² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12102113981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27504585 + ... + 27505024.

It is an arithmetic number, because the mean of its divisors is an integer number (1155201810).

Almost surely, 2^12102113980 is an apocalyptic number.

12102113980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12102113980 is an abundant number, since it is smaller than the sum of its proper divisors (15622729460).

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

12102113980 is a wasteful number, since it uses less digits than its factorization.

12102113980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55009629 (or 55009627 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 28.

The spelling of 12102113980 in words is "twelve billion, one hundred two million, one hundred thirteen thousand, nine hundred eighty".