1040203235009 has 2 divisors, whose sum is σ = 1040203235010. Its totient is φ = 1040203235008.

The previous prime is 1040203234997. The next prime is 1040203235017. The reversal of 1040203235009 is 9005323020401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 782113834384 + 258089400625 = 884372^2 + 508025^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1040203235009 is a prime.

It is not a weakly prime, because it can be changed into another prime (1040203205009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 520101617504 + 520101617505.

It is an arithmetic number, because the mean of its divisors is an integer number (520101617505).

Almost surely, 2^{1040203235009} is an apocalyptic number.

It is an amenable number.

1040203235009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1040203235009 is an equidigital number, since it uses as much as digits as its factorization.

1040203235009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 29.

The spelling of 1040203235009 in words is "one trillion, forty billion, two hundred three million, two hundred thirty-five thousand, nine".