12010320121121 has 4 divisors (see below), whose sum is σ = 13726080138432. Its totient is φ = 10294560103812.

The previous prime is 12010320121091. The next prime is 12010320121127. The reversal of 12010320121121 is 12112102301021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12010320121121 - 2²⁶ = 12010253012257 is a prime.

It is a super-3 number, since 3×12010320121121³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12010320121121.

It is not an unprimeable number, because it can be changed into a prime (12010320121127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 857880008645 + ... + 857880008658.

It is an arithmetic number, because the mean of its divisors is an integer number (3431520034608).

Almost surely, 2^{12010320121121} is an apocalyptic number.

It is an amenable number.

12010320121121 is a deficient number, since it is larger than the sum of its proper divisors (1715760017311).

12010320121121 is an equidigital number, since it uses as much as digits as its factorization.

12010320121121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1715760017310.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 12010320121121 its reverse (12112102301021), we get a palindrome (24122422422142).

The spelling of 12010320121121 in words is "twelve trillion, ten billion, three hundred twenty million, one hundred twenty-one thousand, one hundred twenty-one".