131223335 has 8 divisors (see below), whose sum is σ = 157638960. Its totient is φ = 104864704.

The previous prime is 131223317. The next prime is 131223361. The reversal of 131223335 is 533322131.

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 131223335 - 2⁶ = 131223271 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131223335.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9005 + ... + 18534.

It is an arithmetic number, because the mean of its divisors is an integer number (19704870).

Almost surely, 2^131223335 is an apocalyptic number.

131223335 is a deficient number, since it is larger than the sum of its proper divisors (26415625).

131223335 is an equidigital number, since it uses as much as digits as its factorization.

131223335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28497.

The product of its digits is 1620, while the sum is 23.

The square root of 131223335 is about 11455.2754222672. The cubic root of 131223335 is about 508.1637605732.

Adding to 131223335 its reverse (533322131), we get a palindrome (664545466).

The spelling of 131223335 in words is "one hundred thirty-one million, two hundred twenty-three thousand, three hundred thirty-five".