14431213009 has 2 divisors, whose sum is σ = 14431213010. Its totient is φ = 14431213008.

The previous prime is 14431213003. The next prime is 14431213019. The reversal of 14431213009 is 90031213441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11853112384 + 2578100625 = 108872^2 + 50775^2 .

It is a cyclic number.

It is not a de Polignac number, because 14431213009 - 2³ = 14431213001 is a prime.

It is a super-2 number, since 2×14431213009² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (14431213001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7215606504 + 7215606505.

It is an arithmetic number, because the mean of its divisors is an integer number (7215606505).

Almost surely, 2^14431213009 is an apocalyptic number.

It is an amenable number.

14431213009 is a deficient number, since it is larger than the sum of its proper divisors (1).

14431213009 is an equidigital number, since it uses as much as digits as its factorization.

14431213009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 28.

The spelling of 14431213009 in words is "fourteen billion, four hundred thirty-one million, two hundred thirteen thousand, nine".