20121113033233 has 4 divisors (see below), whose sum is σ = 20421428153200. Its totient is φ = 19820797913268.

The previous prime is 20121113033209. The next prime is 20121113033237. The reversal of 20121113033233 is 33233031112102.

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 a cyclic number.

It is not a de Polignac number, because 20121113033233 - 2³³ = 20112523098641 is a prime.

It is a super-2 number, since 2×20121113033233² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20121113033198 and 20121113033207.

It is not an unprimeable number, because it can be changed into a prime (20121113033237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150157559883 + ... + 150157560016.

It is an arithmetic number, because the mean of its divisors is an integer number (5105357038300).

Almost surely, 2^{20121113033233} is an apocalyptic number.

It is an amenable number.

20121113033233 is a deficient number, since it is larger than the sum of its proper divisors (300315119967).

20121113033233 is an equidigital number, since it uses as much as digits as its factorization.

20121113033233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300315119966.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 20121113033233 its reverse (33233031112102), we get a palindrome (53354144145335).

The spelling of 20121113033233 in words is "twenty trillion, one hundred twenty-one billion, one hundred thirteen million, thirty-three thousand, two hundred thirty-three".