20423228430763 has 4 divisors (see below), whose sum is σ = 20423283389280. Its totient is φ = 20423173472248.

The previous prime is 20423228430739. The next prime is 20423228430827. The reversal of 20423228430763 is 36703482232402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20423228430763 - 2⁹ = 20423228430251 is a prime.

It is a super-2 number, since 2×20423228430763² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20423228430733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26918020 + ... + 27666337.

It is an arithmetic number, because the mean of its divisors is an integer number (5105820847320).

Almost surely, 2^{20423228430763} is an apocalyptic number.

20423228430763 is a deficient number, since it is larger than the sum of its proper divisors (54958517).

20423228430763 is an equidigital number, since it uses as much as digits as its factorization.

20423228430763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54958516.

The product of its (nonzero) digits is 2322432, while the sum is 46.

The spelling of 20423228430763 in words is "twenty trillion, four hundred twenty-three billion, two hundred twenty-eight million, four hundred thirty thousand, seven hundred sixty-three".