133030020011231 has 4 divisors (see below), whose sum is σ = 152034308584272. Its totient is φ = 114025731438192.

The previous prime is 133030020011143. The next prime is 133030020011233. The reversal of 133030020011231 is 132110020030331.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 133030020011231 - 2¹⁸ = 133030019749087 is a prime.

It is a super-3 number, since 3×133030020011231³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133030020011233) 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, 9502144286510 + ... + 9502144286523.

It is an arithmetic number, because the mean of its divisors is an integer number (38008577146068).

Almost surely, 2^{133030020011231} is an apocalyptic number.

133030020011231 is a deficient number, since it is larger than the sum of its proper divisors (19004288573041).

133030020011231 is an equidigital number, since it uses as much as digits as its factorization.

133030020011231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19004288573040.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 133030020011231 its reverse (132110020030331), we get a palindrome (265140040041562).

The spelling of 133030020011231 in words is "one hundred thirty-three trillion, thirty billion, twenty million, eleven thousand, two hundred thirty-one".