20301221403 has 48 divisors (see below), whose sum is σ = 32042949120. Its totient is φ = 12808868256.

The previous prime is 20301221401. The next prime is 20301221417. The reversal of 20301221403 is 30412210302.

It is not a de Polignac number, because 20301221403 - 2¹ = 20301221401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20301221401) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6864001 + ... + 6866957.

It is an arithmetic number, because the mean of its divisors is an integer number (667561440).

Almost surely, 2^20301221403 is an apocalyptic number.

20301221403 is a deficient number, since it is larger than the sum of its proper divisors (11741727717).

20301221403 is a wasteful number, since it uses less digits than its factorization.

20301221403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4478 (or 4466 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 20301221403 its reverse (30412210302), we get a palindrome (50713431705).

The spelling of 20301221403 in words is "twenty billion, three hundred one million, two hundred twenty-one thousand, four hundred three".