133111223 has 8 divisors (see below), whose sum is σ = 152443392. Its totient is φ = 113858136.

The previous prime is 133111219. The next prime is 133111261. The reversal of 133111223 is 322111331.

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

It is not a de Polignac number, because 133111223 - 2² = 133111219 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 (133111213) 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, 16115 + ... + 22932.

It is an arithmetic number, because the mean of its divisors is an integer number (19055424).

Almost surely, 2^133111223 is an apocalyptic number.

133111223 is a deficient number, since it is larger than the sum of its proper divisors (19332169).

133111223 is an equidigital number, since it uses as much as digits as its factorization.

133111223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39541.

The product of its digits is 108, while the sum is 17.

The square root of 133111223 is about 11537.3837155570. The cubic root of 133111223 is about 510.5891218592.

Adding to 133111223 its product of digits (108), we get a palindrome (133111331).

Adding to 133111223 its reverse (322111331), we get a palindrome (455222554).

The spelling of 133111223 in words is "one hundred thirty-three million, one hundred eleven thousand, two hundred twenty-three".