20202300021623 has 2 divisors, whose sum is σ = 20202300021624. Its totient is φ = 20202300021622.

The previous prime is 20202300021613. The next prime is 20202300021637. The reversal of 20202300021623 is 32612000320202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20202300021623 - 2²⁸ = 20202031586167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20202300021613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10101150010811 + 10101150010812.

It is an arithmetic number, because the mean of its divisors is an integer number (10101150010812).

Almost surely, 2^{20202300021623} is an apocalyptic number.

20202300021623 is a deficient number, since it is larger than the sum of its proper divisors (1).

20202300021623 is an equidigital number, since it uses as much as digits as its factorization.

20202300021623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 20202300021623 its reverse (32612000320202), we get a palindrome (52814300341825).

The spelling of 20202300021623 in words is "twenty trillion, two hundred two billion, three hundred million, twenty-one thousand, six hundred twenty-three".