133220101331 has 2 divisors, whose sum is σ = 133220101332. Its totient is φ = 133220101330.

The previous prime is 133220101309. The next prime is 133220101373. The reversal of 133220101331 is 133101022331.

It is a weak prime.

It is an emirp because it is prime and its reverse (133101022331) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133220101331 is a prime.

It is a super-2 number, since 2×133220101331² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (133220101381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66610050665 + 66610050666.

It is an arithmetic number, because the mean of its divisors is an integer number (66610050666).

Almost surely, 2^133220101331 is an apocalyptic number.

133220101331 is a deficient number, since it is larger than the sum of its proper divisors (1).

133220101331 is an equidigital number, since it uses as much as digits as its factorization.

133220101331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 133220101331 its reverse (133101022331), we get a palindrome (266321123662).

The spelling of 133220101331 in words is "one hundred thirty-three billion, two hundred twenty million, one hundred one thousand, three hundred thirty-one".