12021012113 has 8 divisors (see below), whose sum is σ = 13115960640. Its totient is φ = 10926418480.

The previous prime is 12021012109. The next prime is 12021012149. The reversal of 12021012113 is 31121012021.

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

It is a cyclic number.

It is not a de Polignac number, because 12021012113 - 2² = 12021012109 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12021012163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15245 + ... + 155802.

It is an arithmetic number, because the mean of its divisors is an integer number (1639495080).

Almost surely, 2^12021012113 is an apocalyptic number.

It is an amenable number.

12021012113 is a deficient number, since it is larger than the sum of its proper divisors (1094948527).

12021012113 is a wasteful number, since it uses less digits than its factorization.

12021012113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177447.

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

Adding to 12021012113 its reverse (31121012021), we get a palindrome (43142024134).

The spelling of 12021012113 in words is "twelve billion, twenty-one million, twelve thousand, one hundred thirteen".