12404212133 has 4 divisors (see below), whose sum is σ = 12943525728. Its totient is φ = 11864898540.

The previous prime is 12404212109. The next prime is 12404212141. The reversal of 12404212133 is 33121240421.

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 12404212133 - 2²⁰ = 12403163557 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 539313571 = 12404212133 / (1 + 2 + 4 + 0 + 4 + 2 + 1 + 2 + 1 + 3 + 3).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12404212099 and 12404212108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12404212103) 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, 269656763 + ... + 269656808.

It is an arithmetic number, because the mean of its divisors is an integer number (3235881432).

Almost surely, 2^12404212133 is an apocalyptic number.

It is an amenable number.

12404212133 is a deficient number, since it is larger than the sum of its proper divisors (539313595).

12404212133 is an equidigital number, since it uses as much as digits as its factorization.

12404212133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539313594.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 12404212133 its reverse (33121240421), we get a palindrome (45525452554).

The spelling of 12404212133 in words is "twelve billion, four hundred four million, two hundred twelve thousand, one hundred thirty-three".