133133320123 has 4 divisors (see below), whose sum is σ = 133134510168. Its totient is φ = 133132130080.

The previous prime is 133133320097. The next prime is 133133320139. The reversal of 133133320123 is 321023331331.

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

It is a cyclic number.

It is not a de Polignac number, because 133133320123 - 2⁵ = 133133320091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133133320183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 407518 + ... + 657523.

It is an arithmetic number, because the mean of its divisors is an integer number (33283627542).

Almost surely, 2^133133320123 is an apocalyptic number.

133133320123 is a deficient number, since it is larger than the sum of its proper divisors (1190045).

133133320123 is a wasteful number, since it uses less digits than its factorization.

133133320123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1190044.

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 133133320123 its reverse (321023331331), we get a palindrome (454156651454).

The spelling of 133133320123 in words is "one hundred thirty-three billion, one hundred thirty-three million, three hundred twenty thousand, one hundred twenty-three".