121320133 has 4 divisors (see below), whose sum is σ = 132349248. Its totient is φ = 110291020.

The previous prime is 121320103. The next prime is 121320163. The reversal of 121320133 is 331023121.

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 an interprime number because it is at equal distance from previous prime (121320103) and next prime (121320163).

It is a cyclic number.

It is not a de Polignac number, because 121320133 - 2⁹ = 121319621 is a prime.

It is a super-2 number, since 2×121320133² = 29437149342275378, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121320103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5514541 + ... + 5514562.

It is an arithmetic number, because the mean of its divisors is an integer number (33087312).

Almost surely, 2^121320133 is an apocalyptic number.

It is an amenable number.

121320133 is a deficient number, since it is larger than the sum of its proper divisors (11029115).

121320133 is a wasteful number, since it uses less digits than its factorization.

121320133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11029114.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 121320133 is about 11014.5418878862. The cubic root of 121320133 is about 495.0445601487.

Adding to 121320133 its reverse (331023121), we get a palindrome (452343254).

The spelling of 121320133 in words is "one hundred twenty-one million, three hundred twenty thousand, one hundred thirty-three".