133311123 has 16 divisors (see below), whose sum is σ = 215452800. Its totient is φ = 80794440.

The previous prime is 133311121. The next prime is 133311179. The reversal of 133311123 is 321113331.

It is a happy number.

It is not a de Polignac number, because 133311123 - 2¹ = 133311121 is a prime.

It is a super-2 number, since 2×133311123² = 35543711031042258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 133311096 and 133311105.

It is not an unprimeable number, because it can be changed into a prime (133311121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 224133 + ... + 224726.

It is an arithmetic number, because the mean of its divisors is an integer number (13465800).

Almost surely, 2^133311123 is an apocalyptic number.

133311123 is a deficient number, since it is larger than the sum of its proper divisors (82141677).

133311123 is a wasteful number, since it uses less digits than its factorization.

133311123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448879 (or 448873 counting only the distinct ones).

The product of its digits is 162, while the sum is 18.

The square root of 133311123 is about 11546.0436080936. The cubic root of 133311123 is about 510.8445867073.

Adding to 133311123 its reverse (321113331), we get a palindrome (454424454).

The spelling of 133311123 in words is "one hundred thirty-three million, three hundred eleven thousand, one hundred twenty-three".