20121110233 has 8 divisors (see below), whose sum is σ = 23001205568. Its totient is φ = 17242427664.

The previous prime is 20121110227. The next prime is 20121110297. The reversal of 20121110233 is 33201112102.

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

It is not a de Polignac number, because 20121110233 - 2¹⁷ = 20120979161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20121111233) 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, 322491 + ... + 379792.

It is an arithmetic number, because the mean of its divisors is an integer number (2875150696).

Almost surely, 2^20121110233 is an apocalyptic number.

It is an amenable number.

20121110233 is a deficient number, since it is larger than the sum of its proper divisors (2880095335).

20121110233 is an equidigital number, since it uses as much as digits as its factorization.

20121110233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706383.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 20121110233 its reverse (33201112102), we get a palindrome (53322222335).

The spelling of 20121110233 in words is "twenty billion, one hundred twenty-one million, one hundred ten thousand, two hundred thirty-three".