131303020203223 has 4 divisors (see below), whose sum is σ = 143239658403528. Its totient is φ = 119366382002920.

The previous prime is 131303020203217. The next prime is 131303020203403. The reversal of 131303020203223 is 322302020303131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131303020203223 is a prime.

It is a super-2 number, since 2×131303020203223² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131303020203623) 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, 5968319100136 + ... + 5968319100157.

It is an arithmetic number, because the mean of its divisors is an integer number (35809914600882).

Almost surely, 2^{131303020203223} is an apocalyptic number.

131303020203223 is a deficient number, since it is larger than the sum of its proper divisors (11936638200305).

131303020203223 is a wasteful number, since it uses less digits than its factorization.

131303020203223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11936638200304.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 131303020203223 its reverse (322302020303131), we get a palindrome (453605040506354).

The spelling of 131303020203223 in words is "one hundred thirty-one trillion, three hundred three billion, twenty million, two hundred three thousand, two hundred twenty-three".