20311000222203 has 40 divisors (see below), whose sum is σ = 31494494631600. Its totient is φ = 13029126530112.

The previous prime is 20311000222189. The next prime is 20311000222231. The reversal of 20311000222203 is 30222200011302.

It is not a de Polignac number, because 20311000222203 - 2¹⁴ = 20311000205819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20311000222603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 14067133 + ... + 15443646.

It is an arithmetic number, because the mean of its divisors is an integer number (787362365790).

Almost surely, 2^{20311000222203} is an apocalyptic number.

20311000222203 is a deficient number, since it is larger than the sum of its proper divisors (11183494409397).

20311000222203 is a wasteful number, since it uses less digits than its factorization.

20311000222203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29511113 (or 29511104 counting only the distinct ones).

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

Adding to 20311000222203 its reverse (30222200011302), we get a palindrome (50533200233505).

The spelling of 20311000222203 in words is "twenty trillion, three hundred eleven billion, two hundred twenty-two thousand, two hundred three".