403242442112009 has 2 divisors, whose sum is σ = 403242442112010. Its totient is φ = 403242442112008.

The previous prime is 403242442111997. The next prime is 403242442112017. The reversal of 403242442112009 is 900211244242304.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 281419413313600 + 121823028798409 = 16775560^2 + 11037347^2 .

It is a cyclic number.

It is not a de Polignac number, because 403242442112009 - 2²⁰ = 403242441063433 is a prime.

It is not a weakly prime, because it can be changed into another prime (403242442112039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201621221056004 + 201621221056005.

It is an arithmetic number, because the mean of its divisors is an integer number (201621221056005).

Almost surely, 2^{403242442112009} is an apocalyptic number.

It is an amenable number.

403242442112009 is a deficient number, since it is larger than the sum of its proper divisors (1).

403242442112009 is an equidigital number, since it uses as much as digits as its factorization.

403242442112009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 110592, while the sum is 38.

The spelling of 403242442112009 in words is "four hundred three trillion, two hundred forty-two billion, four hundred forty-two million, one hundred twelve thousand, nine".