2043420320413 has 2 divisors, whose sum is σ = 2043420320414. Its totient is φ = 2043420320412.

The previous prime is 2043420320407. The next prime is 2043420320467. The reversal of 2043420320413 is 3140230243402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1320711205284 + 722709115129 = 1149222^2 + 850123^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2043420320413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2043420300413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1021710160206 + 1021710160207.

It is an arithmetic number, because the mean of its divisors is an integer number (1021710160207).

Almost surely, 2^{2043420320413} is an apocalyptic number.

It is an amenable number.

2043420320413 is a deficient number, since it is larger than the sum of its proper divisors (1).

2043420320413 is an equidigital number, since it uses as much as digits as its factorization.

2043420320413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 2043420320413 its reverse (3140230243402), we get a palindrome (5183650563815).

The spelling of 2043420320413 in words is "two trillion, forty-three billion, four hundred twenty million, three hundred twenty thousand, four hundred thirteen".