240412020502009 has 2 divisors, whose sum is σ = 240412020502010. Its totient is φ = 240412020502008.

The previous prime is 240412020501979. The next prime is 240412020502033. The reversal of 240412020502009 is 900205020214042.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 236163990346384 + 4248030155625 = 15367628^2 + 2061075^2 .

It is a cyclic number.

It is not a de Polignac number, because 240412020502009 - 2¹¹ = 240412020499961 is a prime.

It is not a weakly prime, because it can be changed into another prime (240412020502909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120206010251004 + 120206010251005.

It is an arithmetic number, because the mean of its divisors is an integer number (120206010251005).

Almost surely, 2^{240412020502009} is an apocalyptic number.

It is an amenable number.

240412020502009 is a deficient number, since it is larger than the sum of its proper divisors (1).

240412020502009 is an equidigital number, since it uses as much as digits as its factorization.

240412020502009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 31.

The spelling of 240412020502009 in words is "two hundred forty trillion, four hundred twelve billion, twenty million, five hundred two thousand, nine".