131123219 has 8 divisors (see below), whose sum is σ = 134307072. Its totient is φ = 127965760.

The previous prime is 131123203. The next prime is 131123249. The reversal of 131123219 is 912321131.

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 131123219 - 2⁴ = 131123203 is a prime.

It is a super-2 number, since 2×131123219² = 34386597121843922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131123194 and 131123203.

It is not an unprimeable number, because it can be changed into a prime (131123249) 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, 3647 + ... + 16599.

It is an arithmetic number, because the mean of its divisors is an integer number (16788384).

Almost surely, 2^131123219 is an apocalyptic number.

131123219 is a deficient number, since it is larger than the sum of its proper divisors (3183853).

131123219 is a wasteful number, since it uses less digits than its factorization.

131123219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13197.

The product of its digits is 324, while the sum is 23.

The square root of 131123219 is about 11450.9047240818. The cubic root of 131123219 is about 508.0344942684.

The spelling of 131123219 in words is "one hundred thirty-one million, one hundred twenty-three thousand, two hundred nineteen".