133203401331 has 128 divisors (see below), whose sum is σ = 242023735296. Its totient is φ = 62924359680.

The previous prime is 133203401329. The next prime is 133203401339. The reversal of 133203401331 is 133104302331.

It is a happy number.

It is not a de Polignac number, because 133203401331 - 2¹ = 133203401329 is a prime.

It is a super-3 number, since 3×133203401331³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (133203401339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 136338715 + ... + 136339691.

It is an arithmetic number, because the mean of its divisors is an integer number (1890810432).

Almost surely, 2^133203401331 is an apocalyptic number.

133203401331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

133203401331 is a deficient number, since it is larger than the sum of its proper divisors (108820333965).

133203401331 is a wasteful number, since it uses less digits than its factorization.

133203401331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1641.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 133203401331 its reverse (133104302331), we get a palindrome (266307703662).

The spelling of 133203401331 in words is "one hundred thirty-three billion, two hundred three million, four hundred one thousand, three hundred thirty-one".