20303344734421 has 16 divisors (see below), whose sum is σ = 23210338927360. Its totient is φ = 17397980409600.

The previous prime is 20303344734419. The next prime is 20303344734437. The reversal of 20303344734421 is 12443744330302.

It is not a de Polignac number, because 20303344734421 - 2¹ = 20303344734419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20303344734481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 412636621 + ... + 412685821.

It is an arithmetic number, because the mean of its divisors is an integer number (1450646182960).

Almost surely, 2^{20303344734421} is an apocalyptic number.

It is an amenable number.

20303344734421 is a deficient number, since it is larger than the sum of its proper divisors (2906994192939).

20303344734421 is an equidigital number, since it uses as much as digits as its factorization.

20303344734421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64564.

The product of its (nonzero) digits is 580608, while the sum is 40.

The spelling of 20303344734421 in words is "twenty trillion, three hundred three billion, three hundred forty-four million, seven hundred thirty-four thousand, four hundred twenty-one".