20300400003 has 16 divisors (see below), whose sum is σ = 30089593856. Its totient is φ = 12089567520.

The previous prime is 20300399981. The next prime is 20300400019. The reversal of 20300400003 is 30000400302.

It is not a de Polignac number, because 20300400003 - 2⁵ = 20300399971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20300400083) 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, 8394325 + ... + 8396742.

It is an arithmetic number, because the mean of its divisors is an integer number (1880599616).

Almost surely, 2^20300400003 is an apocalyptic number.

20300400003 is a deficient number, since it is larger than the sum of its proper divisors (9789193853).

20300400003 is a wasteful number, since it uses less digits than its factorization.

20300400003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16791114.

The product of its (nonzero) digits is 72, while the sum is 12.

Adding to 20300400003 its reverse (30000400302), we get a palindrome (50300800305).

The spelling of 20300400003 in words is "twenty billion, three hundred million, four hundred thousand, three".