121100033 has 4 divisors (see below), whose sum is σ = 121193028. Its totient is φ = 121007040.

The previous prime is 121100029. The next prime is 121100039. The reversal of 121100033 is 330001121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 83302129 + 37797904 = 9127^2 + 6148^2 .

It is a cyclic number.

It is not a de Polignac number, because 121100033 - 2² = 121100029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121099987 and 121100023.

It is not an unprimeable number, because it can be changed into a prime (121100039) 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, 44516 + ... + 47157.

It is an arithmetic number, because the mean of its divisors is an integer number (30298257).

Almost surely, 2^121100033 is an apocalyptic number.

It is an amenable number.

121100033 is a deficient number, since it is larger than the sum of its proper divisors (92995).

121100033 is an equidigital number, since it uses as much as digits as its factorization.

121100033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92994.

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

The square root of 121100033 is about 11004.5460151703. The cubic root of 121100033 is about 494.7450075981.

Adding to 121100033 its reverse (330001121), we get a palindrome (451101154).

The spelling of 121100033 in words is "one hundred twenty-one million, one hundred thousand, thirty-three".