20013603343 has 2 divisors, whose sum is σ = 20013603344. Its totient is φ = 20013603342.

The previous prime is 20013603301. The next prime is 20013603361. The reversal of 20013603343 is 34330631002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20013603343 - 2²⁵ = 19980048911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20013603443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10006801671 + 10006801672.

It is an arithmetic number, because the mean of its divisors is an integer number (10006801672).

Almost surely, 2^20013603343 is an apocalyptic number.

20013603343 is a deficient number, since it is larger than the sum of its proper divisors (1).

20013603343 is an equidigital number, since it uses as much as digits as its factorization.

20013603343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 25.

The spelling of 20013603343 in words is "twenty billion, thirteen million, six hundred three thousand, three hundred forty-three".