12013000515121 has 4 divisors (see below), whose sum is σ = 12016673095744. Its totient is φ = 12009327934500.

The previous prime is 12013000515077. The next prime is 12013000515137. The reversal of 12013000515121 is 12151500031021.

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 12013000515121 - 2⁷ = 12013000514993 is a prime.

It is a super-2 number, since 2×12013000515121² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12013000515092 and 12013000515101.

It is not an unprimeable number, because it can be changed into a prime (12013000515521) 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, 1836285405 + ... + 1836291946.

It is an arithmetic number, because the mean of its divisors is an integer number (3004168273936).

Almost surely, 2^{12013000515121} is an apocalyptic number.

It is an amenable number.

12013000515121 is a deficient number, since it is larger than the sum of its proper divisors (3672580623).

12013000515121 is an equidigital number, since it uses as much as digits as its factorization.

12013000515121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3672580622.

The product of its (nonzero) digits is 300, while the sum is 22.

Adding to 12013000515121 its reverse (12151500031021), we get a palindrome (24164500546142).

The spelling of 12013000515121 in words is "twelve trillion, thirteen billion, five hundred fifteen thousand, one hundred twenty-one".