12013321321121 has 8 divisors (see below), whose sum is σ = 12427754702400. Its totient is φ = 11598900001360.

The previous prime is 12013321321103. The next prime is 12013321321123. The reversal of 12013321321121 is 12112312331021.

It is a happy number.

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 12013321321121 - 2³⁴ = 11996141451937 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12013321321123) 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, 965381 + ... + 4995858.

It is an arithmetic number, because the mean of its divisors is an integer number (1553469337800).

Almost surely, 2^{12013321321121} is an apocalyptic number.

It is an amenable number.

12013321321121 is a deficient number, since it is larger than the sum of its proper divisors (414433381279).

12013321321121 is an equidigital number, since it uses as much as digits as its factorization.

12013321321121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6030759.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 12013321321121 its reverse (12112312331021), we get a palindrome (24125633652142).

The spelling of 12013321321121 in words is "twelve trillion, thirteen billion, three hundred twenty-one million, three hundred twenty-one thousand, one hundred twenty-one".