2003020419509 has 2 divisors, whose sum is σ = 2003020419510. Its totient is φ = 2003020419508.

The previous prime is 2003020419443. The next prime is 2003020419601. The reversal of 2003020419509 is 9059140203002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1490682274225 + 512338145284 = 1220935^2 + 715778^2 .

It is a cyclic number.

It is not a de Polignac number, because 2003020419509 - 2²⁸ = 2002751984053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2003020419109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001510209754 + 1001510209755.

It is an arithmetic number, because the mean of its divisors is an integer number (1001510209755).

Almost surely, 2^{2003020419509} is an apocalyptic number.

It is an amenable number.

2003020419509 is a deficient number, since it is larger than the sum of its proper divisors (1).

2003020419509 is an equidigital number, since it uses as much as digits as its factorization.

2003020419509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 35.

The spelling of 2003020419509 in words is "two trillion, three billion, twenty million, four hundred nineteen thousand, five hundred nine".