20312222103 has 12 divisors (see below), whose sum is σ = 29462640480. Its totient is φ = 13484821056.

The previous prime is 20312222089. The next prime is 20312222111. The reversal of 20312222103 is 30122221302.

It is not a de Polignac number, because 20312222103 - 2⁵ = 20312222071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20312222113) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4719426 + ... + 4723727.

It is an arithmetic number, because the mean of its divisors is an integer number (2455220040).

Almost surely, 2^20312222103 is an apocalyptic number.

20312222103 is a deficient number, since it is larger than the sum of its proper divisors (9150418377).

20312222103 is a wasteful number, since it uses less digits than its factorization.

20312222103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9443398 (or 9443395 counting only the distinct ones).

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

Adding to 20312222103 its reverse (30122221302), we get a palindrome (50434443405).

The spelling of 20312222103 in words is "twenty billion, three hundred twelve million, two hundred twenty-two thousand, one hundred three".