131122223 has 8 divisors (see below), whose sum is σ = 135351216. Its totient is φ = 126942400.

The previous prime is 131122181. The next prime is 131122247. The reversal of 131122223 is 322221131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131122223 - 2⁸ = 131121967 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 (131122723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6836 + ... + 17577.

It is an arithmetic number, because the mean of its divisors is an integer number (16918902).

Almost surely, 2^131122223 is an apocalyptic number.

131122223 is a deficient number, since it is larger than the sum of its proper divisors (4228993).

131122223 is a wasteful number, since it uses less digits than its factorization.

131122223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24585.

The product of its digits is 144, while the sum is 17.

The square root of 131122223 is about 11450.8612339859. The cubic root of 131122223 is about 508.0332079372.

Adding to 131122223 its reverse (322221131), we get a palindrome (453343354).

The spelling of 131122223 in words is "one hundred thirty-one million, one hundred twenty-two thousand, two hundred twenty-three".