133111323 has 8 divisors (see below), whose sum is σ = 197202000. Its totient is φ = 88740864.

The previous prime is 133111301. The next prime is 133111331. The reversal of 133111323 is 323111331.

It is a happy number.

133111323 is a `hidden beast` number, since 1 + 331 + 11 + 323 = 666.

It is not a de Polignac number, because 133111323 - 2⁸ = 133111067 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 133111296 and 133111305.

It is not an unprimeable number, because it can be changed into a prime (133111393) 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, 2464998 + ... + 2465051.

It is an arithmetic number, because the mean of its divisors is an integer number (24650250).

Almost surely, 2^133111323 is an apocalyptic number.

133111323 is a deficient number, since it is larger than the sum of its proper divisors (64090677).

133111323 is an equidigital number, since it uses as much as digits as its factorization.

133111323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4930058 (or 4930052 counting only the distinct ones).

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

The square root of 133111323 is about 11537.3880492943. The cubic root of 133111323 is about 510.5892497195.

Adding to 133111323 its reverse (323111331), we get a palindrome (456222654).

The spelling of 133111323 in words is "one hundred thirty-three million, one hundred eleven thousand, three hundred twenty-three".