133134040231 has 4 divisors (see below), whose sum is σ = 140141095000. Its totient is φ = 126126985464.

The previous prime is 133134040187. The next prime is 133134040313. The reversal of 133134040231 is 132040431331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132040431331 = 91583 ⋅1441757.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133134040231 is a prime.

It is a super-2 number, since 2×133134040231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133134040196 and 133134040205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133134041231) 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, 3503527356 + ... + 3503527393.

It is an arithmetic number, because the mean of its divisors is an integer number (35035273750).

Almost surely, 2^133134040231 is an apocalyptic number.

133134040231 is a deficient number, since it is larger than the sum of its proper divisors (7007054769).

133134040231 is an equidigital number, since it uses as much as digits as its factorization.

133134040231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7007054768.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 133134040231 its reverse (132040431331), we get a palindrome (265174471562).

The spelling of 133134040231 in words is "one hundred thirty-three billion, one hundred thirty-four million, forty thousand, two hundred thirty-one".