20433343019 has 2 divisors, whose sum is σ = 20433343020. Its totient is φ = 20433343018.

The previous prime is 20433343003. The next prime is 20433343031. The reversal of 20433343019 is 91034333402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20433343019 - 2⁴ = 20433343003 is a prime.

It is a super-2 number, since 2×20433343019² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20433343039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10216671509 + 10216671510.

It is an arithmetic number, because the mean of its divisors is an integer number (10216671510).

Almost surely, 2^20433343019 is an apocalyptic number.

20433343019 is a deficient number, since it is larger than the sum of its proper divisors (1).

20433343019 is an equidigital number, since it uses as much as digits as its factorization.

20433343019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 32.

The spelling of 20433343019 in words is "twenty billion, four hundred thirty-three million, three hundred forty-three thousand, nineteen".