123313133 has 16 divisors (see below), whose sum is σ = 133555200. Its totient is φ = 113581440.

The previous prime is 123313129. The next prime is 123313159. The reversal of 123313133 is 331313321.

It is a cyclic number.

It is not a de Polignac number, because 123313133 - 2² = 123313129 is a prime.

It is a super-2 number, since 2×123313133² = 30412257540551378, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123313163) 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, 64688 + ... + 66566.

It is an arithmetic number, because the mean of its divisors is an integer number (8347200).

Almost surely, 2^123313133 is an apocalyptic number.

It is an amenable number.

123313133 is a deficient number, since it is larger than the sum of its proper divisors (10242067).

123313133 is a wasteful number, since it uses less digits than its factorization.

123313133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2012.

The product of its digits is 486, while the sum is 20.

The square root of 123313133 is about 11104.6446588804. The cubic root of 123313133 is about 497.7406500533.

Adding to 123313133 its reverse (331313321), we get a palindrome (454626454).

The spelling of 123313133 in words is "one hundred twenty-three million, three hundred thirteen thousand, one hundred thirty-three".