133503450423 has 16 divisors (see below), whose sum is σ = 203582040576. Its totient is φ = 76232106720.

The previous prime is 133503450413. The next prime is 133503450433. The reversal of 133503450423 is 324054305331.

It is an interprime number because it is at equal distance from previous prime (133503450413) and next prime (133503450433).

It is not a de Polignac number, because 133503450423 - 2¹⁶ = 133503384887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133503450413) 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, 2286283 + ... + 2343948.

It is an arithmetic number, because the mean of its divisors is an integer number (12723877536).

Almost surely, 2^133503450423 is an apocalyptic number.

133503450423 is a deficient number, since it is larger than the sum of its proper divisors (70078590153).

133503450423 is a wasteful number, since it uses less digits than its factorization.

133503450423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4631614.

The product of its (nonzero) digits is 64800, while the sum is 33.

Adding to 133503450423 its reverse (324054305331), we get a palindrome (457557755754).

The spelling of 133503450423 in words is "one hundred thirty-three billion, five hundred three million, four hundred fifty thousand, four hundred twenty-three".