12673300921 has 2 divisors, whose sum is σ = 12673300922. Its totient is φ = 12673300920.

The previous prime is 12673300873. The next prime is 12673300993. The reversal of 12673300921 is 12900337621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11590890921 + 1082410000 = 107661^2 + 32900^2 .

It is a cyclic number.

It is not a de Polignac number, because 12673300921 - 2¹⁷ = 12673169849 is a prime.

It is a super-2 number, since 2×12673300921² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12673300021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6336650460 + 6336650461.

It is an arithmetic number, because the mean of its divisors is an integer number (6336650461).

Almost surely, 2^12673300921 is an apocalyptic number.

It is an amenable number.

12673300921 is a deficient number, since it is larger than the sum of its proper divisors (1).

12673300921 is an equidigital number, since it uses as much as digits as its factorization.

12673300921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 34.

The spelling of 12673300921 in words is "twelve billion, six hundred seventy-three million, three hundred thousand, nine hundred twenty-one".