2043020434009 has 2 divisors, whose sum is σ = 2043020434010. Its totient is φ = 2043020434008.

The previous prime is 2043020433793. The next prime is 2043020434127. The reversal of 2043020434009 is 9004340203402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2019141531225 + 23878902784 = 1420965^2 + 154528^2 .

It is a cyclic number.

It is not a de Polignac number, because 2043020434009 - 2²³ = 2043012045401 is a prime.

It is not a weakly prime, because it can be changed into another prime (2043020435009) 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, 1021510217004 + 1021510217005.

It is an arithmetic number, because the mean of its divisors is an integer number (1021510217005).

Almost surely, 2^{2043020434009} is an apocalyptic number.

It is an amenable number.

2043020434009 is a deficient number, since it is larger than the sum of its proper divisors (1).

2043020434009 is an equidigital number, since it uses as much as digits as its factorization.

2043020434009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 31.

The spelling of 2043020434009 in words is "two trillion, forty-three billion, twenty million, four hundred thirty-four thousand, nine".