12000421313 has 4 divisors (see below), whose sum is σ = 12000729648. Its totient is φ = 12000112980.

The previous prime is 12000421297. The next prime is 12000421331. The reversal of 12000421313 is 31312400021.

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 12000421313 - 2⁴ = 12000421297 is a prime.

It is a super-2 number, since 2×12000421313² (a number of 21 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 = 12000421291 and 12000421300.

It is not an unprimeable number, because it can be changed into a prime (12000421393) 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, 85631 + ... + 177012.

It is an arithmetic number, because the mean of its divisors is an integer number (3000182412).

Almost surely, 2^12000421313 is an apocalyptic number.

It is an amenable number.

12000421313 is a deficient number, since it is larger than the sum of its proper divisors (308335).

12000421313 is an equidigital number, since it uses as much as digits as its factorization.

12000421313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308334.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 12000421313 its reverse (31312400021), we get a palindrome (43312821334).

The spelling of 12000421313 in words is "twelve billion, four hundred twenty-one thousand, three hundred thirteen".