20121120033 has 8 divisors (see below), whose sum is σ = 30660754368. Its totient is φ = 11497782864.

The previous prime is 20121120007. The next prime is 20121120077. The reversal of 20121120033 is 33002112102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20121120033 - 2⁹ = 20121119521 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20121119994 and 20121120021.

It is not an unprimeable number, because it can be changed into a prime (20121124033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 479074266 + ... + 479074307.

It is an arithmetic number, because the mean of its divisors is an integer number (3832594296).

Almost surely, 2^20121120033 is an apocalyptic number.

It is an amenable number.

20121120033 is a deficient number, since it is larger than the sum of its proper divisors (10539634335).

20121120033 is an equidigital number, since it uses as much as digits as its factorization.

20121120033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 958148583.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20121120033 its reverse (33002112102), we get a palindrome (53123232135).

The spelling of 20121120033 in words is "twenty billion, one hundred twenty-one million, one hundred twenty thousand, thirty-three".