12113120021 has 8 divisors (see below), whose sum is σ = 12438029760. Its totient is φ = 11792197152.

The previous prime is 12113119927. The next prime is 12113120053. The reversal of 12113120021 is 12002131121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12113120021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12113119978 and 12113120005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12113120221) 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, 990560 + ... + 1002713.

It is an arithmetic number, because the mean of its divisors is an integer number (1554753720).

Almost surely, 2^12113120021 is an apocalyptic number.

It is an amenable number.

12113120021 is a deficient number, since it is larger than the sum of its proper divisors (324909739).

12113120021 is a wasteful number, since it uses less digits than its factorization.

12113120021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1993435.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 12113120021 its reverse (12002131121), we get a palindrome (24115251142).

The spelling of 12113120021 in words is "twelve billion, one hundred thirteen million, one hundred twenty thousand, twenty-one".