133532210431 has 4 divisors (see below), whose sum is σ = 133865208864. Its totient is φ = 133199212000.

The previous prime is 133532210423. The next prime is 133532210443. The reversal of 133532210431 is 134012235331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134012235331 = 13 ⋅10308633487.

It is a cyclic number.

It is not a de Polignac number, because 133532210431 - 2³ = 133532210423 is a prime.

It is a super-2 number, since 2×133532210431² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 133532210431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133532216431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166498615 + ... + 166499416.

It is an arithmetic number, because the mean of its divisors is an integer number (33466302216).

Almost surely, 2^133532210431 is an apocalyptic number.

133532210431 is a deficient number, since it is larger than the sum of its proper divisors (332998433).

133532210431 is an equidigital number, since it uses as much as digits as its factorization.

133532210431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332998432.

The product of its (nonzero) digits is 6480, while the sum is 28.

Adding to 133532210431 its reverse (134012235331), we get a palindrome (267544445762).

The spelling of 133532210431 in words is "one hundred thirty-three billion, five hundred thirty-two million, two hundred ten thousand, four hundred thirty-one".