133031132501 has 4 divisors (see below), whose sum is σ = 133040610252. Its totient is φ = 133021654752.

The previous prime is 133031132491. The next prime is 133031132527. The reversal of 133031132501 is 105231130331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 105231130331 = 1423 ⋅73950197.

It can be written as a sum of positive squares in 2 ways, for example, as 62048319025 + 70982813476 = 249095^2 + 266426^2 .

It is a cyclic number.

It is not a de Polignac number, because 133031132501 - 2¹⁰ = 133031131477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133031132551) 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, 4717790 + ... + 4745903.

It is an arithmetic number, because the mean of its divisors is an integer number (33260152563).

Almost surely, 2^133031132501 is an apocalyptic number.

It is an amenable number.

133031132501 is a deficient number, since it is larger than the sum of its proper divisors (9477751).

133031132501 is an equidigital number, since it uses as much as digits as its factorization.

133031132501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9477750.

The product of its (nonzero) digits is 810, while the sum is 23.

Adding to 133031132501 its reverse (105231130331), we get a palindrome (238262262832).

The spelling of 133031132501 in words is "one hundred thirty-three billion, thirty-one million, one hundred thirty-two thousand, five hundred one".