235403999009 has 2 divisors, whose sum is σ = 235403999010. Its totient is φ = 235403999008.

The previous prime is 235403998979. The next prime is 235403999027. The reversal of 235403999009 is 900999304532.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 184487430400 + 50916568609 = 429520^2 + 225647^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-235403999009 is a prime.

It is not a weakly prime, because it can be changed into another prime (235403999209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117701999504 + 117701999505.

It is an arithmetic number, because the mean of its divisors is an integer number (117701999505).

Almost surely, 2^235403999009 is an apocalyptic number.

It is an amenable number.

235403999009 is a deficient number, since it is larger than the sum of its proper divisors (1).

235403999009 is an equidigital number, since it uses as much as digits as its factorization.

235403999009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2361960, while the sum is 53.

The spelling of 235403999009 in words is "two hundred thirty-five billion, four hundred three million, nine hundred ninety-nine thousand, nine".