20121333323303 has 16 divisors (see below), whose sum is σ = 20284797375360. Its totient is φ = 19958599605504.

The previous prime is 20121333323291. The next prime is 20121333323363. The reversal of 20121333323303 is 30332333312102.

It is a cyclic number.

It is not a de Polignac number, because 20121333323303 - 2¹² = 20121333319207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20121333323363) 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, 139491725 + ... + 139635897.

It is an arithmetic number, because the mean of its divisors is an integer number (1267799835960).

Almost surely, 2^{20121333323303} is an apocalyptic number.

20121333323303 is a deficient number, since it is larger than the sum of its proper divisors (163464052057).

20121333323303 is a wasteful number, since it uses less digits than its factorization.

20121333323303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146698.

The product of its (nonzero) digits is 17496, while the sum is 29.

Adding to 20121333323303 its reverse (30332333312102), we get a palindrome (50453666635405).

The spelling of 20121333323303 in words is "twenty trillion, one hundred twenty-one billion, three hundred thirty-three million, three hundred twenty-three thousand, three hundred three".