133205454423 has 40 divisors (see below), whose sum is σ = 201223938960. Its totient is φ = 87807991680.

The previous prime is 133205454383. The next prime is 133205454463. The reversal of 133205454423 is 324454502331.

133205454423 is a `hidden beast` number, since 1 + 3 + 3 + 205 + 4 + 5 + 442 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (133205454383) and next prime (133205454463).

It is not a de Polignac number, because 133205454423 - 2¹⁴ = 133205438039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133205454463) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4674643 + ... + 4703051.

It is an arithmetic number, because the mean of its divisors is an integer number (5030598474).

Almost surely, 2^133205454423 is an apocalyptic number.

133205454423 is a deficient number, since it is larger than the sum of its proper divisors (68018484537).

133205454423 is a wasteful number, since it uses less digits than its factorization.

133205454423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29069 (or 29060 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 36.

Adding to 133205454423 its reverse (324454502331), we get a palindrome (457659956754).

The spelling of 133205454423 in words is "one hundred thirty-three billion, two hundred five million, four hundred fifty-four thousand, four hundred twenty-three".