133203301331 has 4 divisors (see below), whose sum is σ = 133241050200. Its totient is φ = 133165552464.

The previous prime is 133203301313. The next prime is 133203301339. The reversal of 133203301331 is 133103302331.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133203301331 is a prime.

It is a super-2 number, since 2×133203301331² (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 = 133203301297 and 133203301306.

It is not an unprimeable number, because it can be changed into a prime (133203301339) 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, 18869141 + ... + 18876198.

It is an arithmetic number, because the mean of its divisors is an integer number (33310262550).

Almost surely, 2^133203301331 is an apocalyptic number.

133203301331 is a deficient number, since it is larger than the sum of its proper divisors (37748869).

133203301331 is an equidigital number, since it uses as much as digits as its factorization.

133203301331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37748868.

The product of its (nonzero) digits is 1458, while the sum is 23.

Adding to 133203301331 its reverse (133103302331), we get a palindrome (266306603662).

The spelling of 133203301331 in words is "one hundred thirty-three billion, two hundred three million, three hundred one thousand, three hundred thirty-one".