203131401403223 has 4 divisors (see below), whose sum is σ = 203134900288320. Its totient is φ = 203127902518128.

The previous prime is 203131401403213. The next prime is 203131401403237. The reversal of 203131401403223 is 322304104131302.

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 203131401403223 - 2³⁴ = 203114221534039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203131401403213) 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, 1749355463 + ... + 1749471576.

It is an arithmetic number, because the mean of its divisors is an integer number (50783725072080).

Almost surely, 2^{203131401403223} is an apocalyptic number.

203131401403223 is a deficient number, since it is larger than the sum of its proper divisors (3498885097).

203131401403223 is an equidigital number, since it uses as much as digits as its factorization.

203131401403223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3498885096.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 203131401403223 its reverse (322304104131302), we get a palindrome (525435505534525).

The spelling of 203131401403223 in words is "two hundred three trillion, one hundred thirty-one billion, four hundred one million, four hundred three thousand, two hundred twenty-three".