133201220231 has 2 divisors, whose sum is σ = 133201220232. Its totient is φ = 133201220230.

The previous prime is 133201220213. The next prime is 133201220261. The reversal of 133201220231 is 132022102331.

Together with previous prime (133201220213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 133201220231 - 2¹⁸ = 133200958087 is a prime.

It is a super-2 number, since 2×133201220231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133201220261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66600610115 + 66600610116.

It is an arithmetic number, because the mean of its divisors is an integer number (66600610116).

Almost surely, 2^133201220231 is an apocalyptic number.

133201220231 is a deficient number, since it is larger than the sum of its proper divisors (1).

133201220231 is an equidigital number, since it uses as much as digits as its factorization.

133201220231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 133201220231 its reverse (132022102331), we get a palindrome (265223322562).

The spelling of 133201220231 in words is "one hundred thirty-three billion, two hundred one million, two hundred twenty thousand, two hundred thirty-one".