20131301222203 has 4 divisors (see below), whose sum is σ = 20622308569128. Its totient is φ = 19640293875280.

The previous prime is 20131301222159. The next prime is 20131301222261. The reversal of 20131301222203 is 30222210313102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20131301222203 - 2²¹ = 20131299125051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20131301220203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 245503673401 + ... + 245503673482.

It is an arithmetic number, because the mean of its divisors is an integer number (5155577142282).

Almost surely, 2^{20131301222203} is an apocalyptic number.

20131301222203 is a deficient number, since it is larger than the sum of its proper divisors (491007346925).

20131301222203 is an equidigital number, since it uses as much as digits as its factorization.

20131301222203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491007346924.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 20131301222203 its reverse (30222210313102), we get a palindrome (50353511535305).

The spelling of 20131301222203 in words is "twenty trillion, one hundred thirty-one billion, three hundred one million, two hundred twenty-two thousand, two hundred three".