121000133 has 2 divisors, whose sum is σ = 121000134. Its totient is φ = 121000132.

The previous prime is 121000127. The next prime is 121000147. The reversal of 121000133 is 331000121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115627009 + 5373124 = 10753^2 + 2318^2 .

It is a cyclic number.

It is not a de Polignac number, because 121000133 - 2⁸ = 120999877 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121000123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60500066 + 60500067.

It is an arithmetic number, because the mean of its divisors is an integer number (60500067).

Almost surely, 2^121000133 is an apocalyptic number.

It is an amenable number.

121000133 is a deficient number, since it is larger than the sum of its proper divisors (1).

121000133 is an equidigital number, since it uses as much as digits as its factorization.

121000133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 121000133 is about 11000.0060454529. The cubic root of 121000133 is about 494.6089255451.

Adding to 121000133 its reverse (331000121), we get a palindrome (452000254).

The spelling of 121000133 in words is "one hundred twenty-one million, one hundred thirty-three", and thus it is an aban number.