121121433 has 16 divisors (see below), whose sum is σ = 185228800. Its totient is φ = 78142320.

The previous prime is 121121431. The next prime is 121121467. The reversal of 121121433 is 334121121.

121121433 is a `hidden beast` number, since 1 + 211 + 21 + 433 = 666.

It is not a de Polignac number, because 121121433 - 2¹ = 121121431 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121121431) 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 in 15 ways as a sum of consecutive naturals, for example, 71518 + ... + 73191.

It is an arithmetic number, because the mean of its divisors is an integer number (11576800).

Almost surely, 2^121121433 is an apocalyptic number.

It is an amenable number.

121121433 is a deficient number, since it is larger than the sum of its proper divisors (64107367).

121121433 is a wasteful number, since it uses less digits than its factorization.

121121433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144749 (or 144743 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 121121433 is about 11005.5182976541. The cubic root of 121121433 is about 494.7741485744.

Adding to 121121433 its reverse (334121121), we get a palindrome (455242554).

The spelling of 121121433 in words is "one hundred twenty-one million, one hundred twenty-one thousand, four hundred thirty-three".