121303133 has 16 divisors (see below), whose sum is σ = 142939776. Its totient is φ = 100776960.

The previous prime is 121303033. The next prime is 121303141. The reversal of 121303133 is 331303121.

It is a cyclic number.

It is not a de Polignac number, because 121303133 - 2¹⁰ = 121302109 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121303153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45485 + ... + 48077.

It is an arithmetic number, because the mean of its divisors is an integer number (8933736).

Almost surely, 2^121303133 is an apocalyptic number.

It is an amenable number.

121303133 is a deficient number, since it is larger than the sum of its proper divisors (21636643).

121303133 is a wasteful number, since it uses less digits than its factorization.

121303133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2804.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 121303133 is about 11013.7701537666. The cubic root of 121303133 is about 495.0214363400.

Adding to 121303133 its reverse (331303121), we get a palindrome (452606254).

The spelling of 121303133 in words is "one hundred twenty-one million, three hundred three thousand, one hundred thirty-three".