23020351643 has 2 divisors, whose sum is σ = 23020351644. Its totient is φ = 23020351642.

The previous prime is 23020351633. The next prime is 23020351649. The reversal of 23020351643 is 34615302032.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23020351643 - 2²⁴ = 23003574427 is a prime.

It is not a weakly prime, because it can be changed into another prime (23020351649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11510175821 + 11510175822.

It is an arithmetic number, because the mean of its divisors is an integer number (11510175822).

Almost surely, 2^23020351643 is an apocalyptic number.

23020351643 is a deficient number, since it is larger than the sum of its proper divisors (1).

23020351643 is an equidigital number, since it uses as much as digits as its factorization.

23020351643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 29.

Adding to 23020351643 its reverse (34615302032), we get a palindrome (57635653675).

The spelling of 23020351643 in words is "twenty-three billion, twenty million, three hundred fifty-one thousand, six hundred forty-three".