133303210331 has 4 divisors (see below), whose sum is σ = 133376015664. Its totient is φ = 133230405000.

The previous prime is 133303210309. The next prime is 133303210343. The reversal of 133303210331 is 133012303331.

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-133303210331 is a prime.

It is a super-2 number, since 2×133303210331² (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 = 133303210297 and 133303210306.

It is not an unprimeable number, because it can be changed into a prime (133303210301) 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, 36399920 + ... + 36403581.

It is an arithmetic number, because the mean of its divisors is an integer number (33344003916).

Almost surely, 2^133303210331 is an apocalyptic number.

133303210331 is a deficient number, since it is larger than the sum of its proper divisors (72805333).

133303210331 is an equidigital number, since it uses as much as digits as its factorization.

133303210331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72805332.

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

Adding to 133303210331 its reverse (133012303331), we get a palindrome (266315513662).

The spelling of 133303210331 in words is "one hundred thirty-three billion, three hundred three million, two hundred ten thousand, three hundred thirty-one".