133321210331 has 4 divisors (see below), whose sum is σ = 133322033064. Its totient is φ = 133320387600.

The previous prime is 133321210327. The next prime is 133321210357. The reversal of 133321210331 is 133012123331.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 133321210331 - 2² = 133321210327 is a prime.

It is a super-2 number, since 2×133321210331² (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 = 133321210297 and 133321210306.

It is not an unprimeable number, because it can be changed into a prime (133321210301) 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 3 ways as a sum of consecutive naturals, for example, 78530 + ... + 522311.

It is an arithmetic number, because the mean of its divisors is an integer number (33330508266).

Almost surely, 2^133321210331 is an apocalyptic number.

133321210331 is a deficient number, since it is larger than the sum of its proper divisors (822733).

133321210331 is an equidigital number, since it uses as much as digits as its factorization.

133321210331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 822732.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 133321210331 its reverse (133012123331), we get a palindrome (266333333662).

The spelling of 133321210331 in words is "one hundred thirty-three billion, three hundred twenty-one million, two hundred ten thousand, three hundred thirty-one".