133203120231001 has 4 divisors (see below), whose sum is σ = 135027820508212. Its totient is φ = 131378419953792.

The previous prime is 133203120230981. The next prime is 133203120231011. The reversal of 133203120231001 is 100132021302331.

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

It can be written as a sum of positive squares in 2 ways, for example, as 99232279171600 + 33970841059401 = 9961540^2 + 5828451^2 .

It is a cyclic number.

It is not a de Polignac number, because 133203120231001 - 2¹¹ = 133203120228953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133203120231011) 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, 912350138496 + ... + 912350138641.

It is an arithmetic number, because the mean of its divisors is an integer number (33756955127053).

Almost surely, 2^{133203120231001} is an apocalyptic number.

It is an amenable number.

133203120231001 is a deficient number, since it is larger than the sum of its proper divisors (1824700277211).

133203120231001 is an equidigital number, since it uses as much as digits as its factorization.

133203120231001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1824700277210.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 133203120231001 its reverse (100132021302331), we get a palindrome (233335141533332).

The spelling of 133203120231001 in words is "one hundred thirty-three trillion, two hundred three billion, one hundred twenty million, two hundred thirty-one thousand, one".