121020033 has 16 divisors (see below), whose sum is σ = 164514240. Its totient is φ = 79110144.

The previous prime is 121020019. The next prime is 121020061. The reversal of 121020033 is 330020121.

It is a happy number.

It is not a de Polignac number, because 121020033 - 2⁸ = 121019777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121020073) 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, 104385 + ... + 105537.

It is an arithmetic number, because the mean of its divisors is an integer number (10282140).

Almost surely, 2^121020033 is an apocalyptic number.

It is an amenable number.

121020033 is a deficient number, since it is larger than the sum of its proper divisors (43494207).

121020033 is a wasteful number, since it uses less digits than its factorization.

121020033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1808.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 121020033 is about 11000.9105532224. The cubic root of 121020033 is about 494.6360389535.

Adding to 121020033 its reverse (330020121), we get a palindrome (451040154).

The spelling of 121020033 in words is "one hundred twenty-one million, twenty thousand, thirty-three".