20403023352303 has 4 divisors (see below), whose sum is σ = 27204031136408. Its totient is φ = 13602015568200.

The previous prime is 20403023352167. The next prime is 20403023352331. The reversal of 20403023352303 is 30325332030402.

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

It is not a de Polignac number, because 20403023352303 - 2¹² = 20403023348207 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 (20403023352373) 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, 3400503892048 + ... + 3400503892053.

It is an arithmetic number, because the mean of its divisors is an integer number (6801007784102).

Almost surely, 2^{20403023352303} is an apocalyptic number.

20403023352303 is a deficient number, since it is larger than the sum of its proper divisors (6801007784105).

20403023352303 is an equidigital number, since it uses as much as digits as its factorization.

20403023352303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6801007784104.

The product of its (nonzero) digits is 38880, while the sum is 30.

Adding to 20403023352303 its reverse (30325332030402), we get a palindrome (50728355382705).

The spelling of 20403023352303 in words is "twenty trillion, four hundred three billion, twenty-three million, three hundred fifty-two thousand, three hundred three".