133401211 has 2 divisors, whose sum is σ = 133401212. Its totient is φ = 133401210.

The previous prime is 133401209. The next prime is 133401239. The reversal of 133401211 is 112104331.

It is a weak prime.

It is an emirp because it is prime and its reverse (112104331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 133401211 - 2¹ = 133401209 is a prime.

Together with 133401209, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (133401241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66700605 + 66700606.

It is an arithmetic number, because the mean of its divisors is an integer number (66700606).

Almost surely, 2^133401211 is an apocalyptic number.

133401211 is a deficient number, since it is larger than the sum of its proper divisors (1).

133401211 is an equidigital number, since it uses as much as digits as its factorization.

133401211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 133401211 is about 11549.9441989994. The cubic root of 133401211 is about 510.9596323824.

Adding to 133401211 its reverse (112104331), we get a palindrome (245505542).

The spelling of 133401211 in words is "one hundred thirty-three million, four hundred one thousand, two hundred eleven".