133205210523 has 96 divisors (see below), whose sum is σ = 254157875712. Its totient is φ = 65085465600.

The previous prime is 133205210491. The next prime is 133205210561. The reversal of 133205210523 is 325012502331.

It is a happy number.

133205210523 is a `hidden beast` number, since 133 + 2 + 0 + 5 + 2 + 1 + 0 + 523 = 666.

It is not a de Polignac number, because 133205210523 - 2⁵ = 133205210491 is a prime.

It is a super-2 number, since 2×133205210523² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (133205210563) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 27011368 + ... + 27016298.

It is an arithmetic number, because the mean of its divisors is an integer number (2647477872).

Almost surely, 2^133205210523 is an apocalyptic number.

133205210523 is a deficient number, since it is larger than the sum of its proper divisors (120952665189).

133205210523 is a wasteful number, since it uses less digits than its factorization.

133205210523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7265 (or 7262 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

Adding to 133205210523 its reverse (325012502331), we get a palindrome (458217712854).

The spelling of 133205210523 in words is "one hundred thirty-three billion, two hundred five million, two hundred ten thousand, five hundred twenty-three".