20420031203 has 48 divisors (see below), whose sum is σ = 25487654400. Its totient is φ = 16190778240.

The previous prime is 20420031197. The next prime is 20420031239. The reversal of 20420031203 is 30213002402.

It is not a de Polignac number, because 20420031203 - 2¹⁰ = 20420030179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20420031103) 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, 2529788 + ... + 2537846.

It is an arithmetic number, because the mean of its divisors is an integer number (530992800).

Almost surely, 2^20420031203 is an apocalyptic number.

20420031203 is a deficient number, since it is larger than the sum of its proper divisors (5067623197).

20420031203 is a wasteful number, since it uses less digits than its factorization.

20420031203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8172 (or 8159 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 20420031203 its reverse (30213002402), we get a palindrome (50633033605).

The spelling of 20420031203 in words is "twenty billion, four hundred twenty million, thirty-one thousand, two hundred three".