133313322212321 has 4 divisors (see below), whose sum is σ = 133322432684292. Its totient is φ = 133304211740352.

The previous prime is 133313322212303. The next prime is 133313322212333. The reversal of 133313322212321 is 123212223313331.

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 900432085921 + 132412890126400 = 948911^2 + 11507080^2 .

It is a cyclic number.

It is not a de Polignac number, because 133313322212321 - 2²² = 133313318018017 is a prime.

It is a super-2 number, since 2×133313322212321² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133313322212921) 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, 4555214036 + ... + 4555243301.

It is an arithmetic number, because the mean of its divisors is an integer number (33330608171073).

Almost surely, 2^{133313322212321} is an apocalyptic number.

It is an amenable number.

133313322212321 is a deficient number, since it is larger than the sum of its proper divisors (9110471971).

133313322212321 is an equidigital number, since it uses as much as digits as its factorization.

133313322212321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9110471970.

The product of its digits is 23328, while the sum is 32.

Adding to 133313322212321 its reverse (123212223313331), we get a palindrome (256525545525652).

The spelling of 133313322212321 in words is "one hundred thirty-three trillion, three hundred thirteen billion, three hundred twenty-two million, two hundred twelve thousand, three hundred twenty-one".