131421322223 has 4 divisors (see below), whose sum is σ = 134626720368. Its totient is φ = 128215924080.

The previous prime is 131421322211. The next prime is 131421322229. The reversal of 131421322223 is 322223124131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322223124131 = 71 ⋅4538353861.

It is a cyclic number.

It is not a de Polignac number, because 131421322223 - 2³⁰ = 130347580399 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131421322192 and 131421322201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131421322229) 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 3 ways as a sum of consecutive naturals, for example, 1602699011 + ... + 1602699092.

It is an arithmetic number, because the mean of its divisors is an integer number (33656680092).

Almost surely, 2^131421322223 is an apocalyptic number.

131421322223 is a deficient number, since it is larger than the sum of its proper divisors (3205398145).

131421322223 is an equidigital number, since it uses as much as digits as its factorization.

131421322223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3205398144.

The product of its digits is 3456, while the sum is 26.

Adding to 131421322223 its reverse (322223124131), we get a palindrome (453644446354).

The spelling of 131421322223 in words is "one hundred thirty-one billion, four hundred twenty-one million, three hundred twenty-two thousand, two hundred twenty-three".