133131233133223 has 4 divisors (see below), whose sum is σ = 143372097220408. Its totient is φ = 122890369046040.

The previous prime is 133131233133131. The next prime is 133131233133233. The reversal of 133131233133223 is 322331332131331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133131233133223 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 (133131233133233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5120432043573 + ... + 5120432043598.

It is an arithmetic number, because the mean of its divisors is an integer number (35843024305102).

Almost surely, 2^{133131233133223} is an apocalyptic number.

133131233133223 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

133131233133223 is a deficient number, since it is larger than the sum of its proper divisors (10240864087185).

133131233133223 is a wasteful number, since it uses less digits than its factorization.

133131233133223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10240864087184.

The product of its digits is 52488, while the sum is 34.

Adding to 133131233133223 its reverse (322331332131331), we get a palindrome (455462565264554).

The spelling of 133131233133223 in words is "one hundred thirty-three trillion, one hundred thirty-one billion, two hundred thirty-three million, one hundred thirty-three thousand, two hundred twenty-three".