133331101 has 4 divisors (see below), whose sum is σ = 133355104. Its totient is φ = 133307100.

The previous prime is 133331083. The next prime is 133331129. The reversal of 133331101 is 101133331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 133331101 - 2¹⁷ = 133200029 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 (133331201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1096 + ... + 16366.

It is an arithmetic number, because the mean of its divisors is an integer number (33338776).

Almost surely, 2^133331101 is an apocalyptic number.

It is an amenable number.

133331101 is a deficient number, since it is larger than the sum of its proper divisors (24003).

133331101 is an equidigital number, since it uses as much as digits as its factorization.

133331101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24002.

The product of its (nonzero) digits is 81, while the sum is 16.

The square root of 133331101 is about 11546.9087205191. The cubic root of 133331101 is about 510.8701038163.

Adding to 133331101 its reverse (101133331), we get a palindrome (234464432).

It can be divided in two parts, 133331 and 101, that multiplied together give a palindrome (13466431).

The spelling of 133331101 in words is "one hundred thirty-three million, three hundred thirty-one thousand, one hundred one".