20233039643 has 2 divisors, whose sum is σ = 20233039644. Its totient is φ = 20233039642.

The previous prime is 20233039627. The next prime is 20233039649. The reversal of 20233039643 is 34693033202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20233039643 - 2⁴ = 20233039627 is a prime.

It is not a weakly prime, because it can be changed into another prime (20233039649) 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, 10116519821 + 10116519822.

It is an arithmetic number, because the mean of its divisors is an integer number (10116519822).

Almost surely, 2^20233039643 is an apocalyptic number.

20233039643 is a deficient number, since it is larger than the sum of its proper divisors (1).

20233039643 is an equidigital number, since it uses as much as digits as its factorization.

20233039643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69984, while the sum is 35.

The spelling of 20233039643 in words is "twenty billion, two hundred thirty-three million, thirty-nine thousand, six hundred forty-three".