133023123 has 48 divisors (see below), whose sum is σ = 210496000. Its totient is φ = 80668224.

The previous prime is 133023119. The next prime is 133023131. The reversal of 133023123 is 321320331.

It is not a de Polignac number, because 133023123 - 2² = 133023119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133023096 and 133023105.

It is not an unprimeable number, because it can be changed into a prime (133023133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 580773 + ... + 581001.

Almost surely, 2^133023123 is an apocalyptic number.

133023123 is a deficient number, since it is larger than the sum of its proper divisors (77472877).

133023123 is a wasteful number, since it uses less digits than its factorization.

133023123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376 (or 373 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 133023123 is about 11533.5650602925. The cubic root of 133023123 is about 510.4764520976.

Adding to 133023123 its reverse (321320331), we get a palindrome (454343454).

The spelling of 133023123 in words is "one hundred thirty-three million, twenty-three thousand, one hundred twenty-three".