20020220444403 has 20 divisors (see below), whose sum is σ = 29907097117480. Its totient is φ = 13346658297792.

The previous prime is 20020220444377. The next prime is 20020220444429. The reversal of 20020220444403 is 30444402202002.

It is an interprime number because it is at equal distance from previous prime (20020220444377) and next prime (20020220444429).

It is not a de Polignac number, because 20020220444403 - 2³⁰ = 20019146702579 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20020220424403) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5787288 + ... + 8575146.

It is an arithmetic number, because the mean of its divisors is an integer number (1495354855874).

Almost surely, 2^{20020220444403} is an apocalyptic number.

20020220444403 is a deficient number, since it is larger than the sum of its proper divisors (9886876673077).

20020220444403 is an equidigital number, since it uses as much as digits as its factorization.

20020220444403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2876528 (or 2876519 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 27.

Adding to 20020220444403 its reverse (30444402202002), we get a palindrome (50464622646405).

The spelling of 20020220444403 in words is "twenty trillion, twenty billion, two hundred twenty million, four hundred forty-four thousand, four hundred three".