131321003223 has 4 divisors (see below), whose sum is σ = 175094670968. Its totient is φ = 87547335480.

The previous prime is 131321003201. The next prime is 131321003237. The reversal of 131321003223 is 322300123131.

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

It is not a de Polignac number, because 131321003223 - 2¹³ = 131320995031 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131321003223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131321103223) 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, 21886833868 + ... + 21886833873.

It is an arithmetic number, because the mean of its divisors is an integer number (43773667742).

Almost surely, 2^131321003223 is an apocalyptic number.

131321003223 is a deficient number, since it is larger than the sum of its proper divisors (43773667745).

131321003223 is an equidigital number, since it uses as much as digits as its factorization.

131321003223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43773667744.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 131321003223 its reverse (322300123131), we get a palindrome (453621126354).

The spelling of 131321003223 in words is "one hundred thirty-one billion, three hundred twenty-one million, three thousand, two hundred twenty-three".