13412312009 has 2 divisors, whose sum is σ = 13412312010. Its totient is φ = 13412312008.

The previous prime is 13412311961. The next prime is 13412312029. The reversal of 13412312009 is 90021321431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13162513984 + 249798025 = 114728^2 + 15805^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13412312009 is a prime.

It is a super-2 number, since 2×13412312009² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13412312029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6706156004 + 6706156005.

It is an arithmetic number, because the mean of its divisors is an integer number (6706156005).

Almost surely, 2^13412312009 is an apocalyptic number.

It is an amenable number.

13412312009 is a deficient number, since it is larger than the sum of its proper divisors (1).

13412312009 is an equidigital number, since it uses as much as digits as its factorization.

13412312009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 26.

The spelling of 13412312009 in words is "thirteen billion, four hundred twelve million, three hundred twelve thousand, nine".