12046345121 has 4 divisors (see below), whose sum is σ = 12163300032. Its totient is φ = 11929390212.

The previous prime is 12046345117. The next prime is 12046345127. The reversal of 12046345121 is 12154364021.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12154364021 = 11821 ⋅1028201.

It is a cyclic number.

It is not a de Polignac number, because 12046345121 - 2² = 12046345117 is a prime.

It is a super-2 number, since 2×12046345121² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12046345127) 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, 58477301 + ... + 58477506.

It is an arithmetic number, because the mean of its divisors is an integer number (3040825008).

Almost surely, 2^12046345121 is an apocalyptic number.

It is an amenable number.

12046345121 is a deficient number, since it is larger than the sum of its proper divisors (116954911).

12046345121 is a wasteful number, since it uses less digits than its factorization.

12046345121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116954910.

The product of its (nonzero) digits is 5760, while the sum is 29.

The spelling of 12046345121 in words is "twelve billion, forty-six million, three hundred forty-five thousand, one hundred twenty-one".