133111101 has 8 divisors (see below), whose sum is σ = 181609120. Its totient is φ = 86676912.

The previous prime is 133111091. The next prime is 133111109. The reversal of 133111101 is 101111331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 133111101 - 2⁷ = 133110973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133111109) 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 7 ways as a sum of consecutive naturals, for example, 515806 + ... + 516063.

It is an arithmetic number, because the mean of its divisors is an integer number (22701140).

Almost surely, 2^133111101 is an apocalyptic number.

It is an amenable number.

133111101 is a deficient number, since it is larger than the sum of its proper divisors (48498019).

133111101 is a wasteful number, since it uses less digits than its factorization.

133111101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1031915.

The product of its (nonzero) digits is 9, while the sum is 12.

The square root of 133111101 is about 11537.3784283952. The cubic root of 133111101 is about 510.5889658696.

Adding to 133111101 its reverse (101111331), we get a palindrome (234222432).

The spelling of 133111101 in words is "one hundred thirty-three million, one hundred eleven thousand, one hundred one".