20487620303 has 4 divisors (see below), whose sum is σ = 20532451440. Its totient is φ = 20442789168.

The previous prime is 20487620221. The next prime is 20487620437. The reversal of 20487620303 is 30302678402.

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 20487620303 - 2¹⁰ = 20487619279 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 (20487620603) 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, 22414883 + ... + 22415796.

It is an arithmetic number, because the mean of its divisors is an integer number (5133112860).

Almost surely, 2^20487620303 is an apocalyptic number.

20487620303 is a deficient number, since it is larger than the sum of its proper divisors (44831137).

20487620303 is an equidigital number, since it uses as much as digits as its factorization.

20487620303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44831136.

The product of its (nonzero) digits is 48384, while the sum is 35.

The spelling of 20487620303 in words is "twenty billion, four hundred eighty-seven million, six hundred twenty thousand, three hundred three".