14321239997 has 2 divisors, whose sum is σ = 14321239998. Its totient is φ = 14321239996.

The previous prime is 14321239991. The next prime is 14321240009. The reversal of 14321239997 is 79993212341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11325429241 + 2995810756 = 106421^2 + 54734^2 .

It is a cyclic number.

It is not a de Polignac number, because 14321239997 - 2²⁰ = 14320191421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14321239991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7160619998 + 7160619999.

It is an arithmetic number, because the mean of its divisors is an integer number (7160619999).

Almost surely, 2^14321239997 is an apocalyptic number.

It is an amenable number.

14321239997 is a deficient number, since it is larger than the sum of its proper divisors (1).

14321239997 is an equidigital number, since it uses as much as digits as its factorization.

14321239997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 734832, while the sum is 50.

The spelling of 14321239997 in words is "fourteen billion, three hundred twenty-one million, two hundred thirty-nine thousand, nine hundred ninety-seven".