20413331203009 has 2 divisors, whose sum is σ = 20413331203010. Its totient is φ = 20413331203008.

The previous prime is 20413331202997. The next prime is 20413331203037. The reversal of 20413331203009 is 90030213331402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18159870873600 + 2253460329409 = 4261440^2 + 1501153^2 .

It is a cyclic number.

It is not a de Polignac number, because 20413331203009 - 2¹⁷ = 20413331071937 is a prime.

It is not a weakly prime, because it can be changed into another prime (20413331203099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10206665601504 + 10206665601505.

It is an arithmetic number, because the mean of its divisors is an integer number (10206665601505).

Almost surely, 2^{20413331203009} is an apocalyptic number.

It is an amenable number.

20413331203009 is a deficient number, since it is larger than the sum of its proper divisors (1).

20413331203009 is an equidigital number, since it uses as much as digits as its factorization.

20413331203009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 31.

The spelling of 20413331203009 in words is "twenty trillion, four hundred thirteen billion, three hundred thirty-one million, two hundred three thousand, nine".