131223313 has 8 divisors (see below), whose sum is σ = 142186688. Its totient is φ = 120384144.

The previous prime is 131223307. The next prime is 131223317. The reversal of 131223313 is 313322131.

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 131223313 - 2²⁵ = 97668881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131223317) 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, 28845 + ... + 33082.

It is an arithmetic number, because the mean of its divisors is an integer number (17773336).

Almost surely, 2^131223313 is an apocalyptic number.

131223313 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

131223313 is a deficient number, since it is larger than the sum of its proper divisors (10963375).

131223313 is a wasteful number, since it uses less digits than its factorization.

131223313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62103.

The product of its digits is 324, while the sum is 19.

The square root of 131223313 is about 11455.2744620109. The cubic root of 131223313 is about 508.1637321748.

Adding to 131223313 its reverse (313322131), we get a palindrome (444545444).

The spelling of 131223313 in words is "one hundred thirty-one million, two hundred twenty-three thousand, three hundred thirteen".