20103313023221 has 16 divisors (see below), whose sum is σ = 20795367614976. Its totient is φ = 19413999000000.

The previous prime is 20103313023217. The next prime is 20103313023239. The reversal of 20103313023221 is 12232031330102.

It is a cyclic number.

It is not a de Polignac number, because 20103313023221 - 2² = 20103313023217 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20103313023271) 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, 67791371 + ... + 68087271.

It is an arithmetic number, because the mean of its divisors is an integer number (1299710475936).

Almost surely, 2^{20103313023221} is an apocalyptic number.

It is an amenable number.

20103313023221 is a deficient number, since it is larger than the sum of its proper divisors (692054591755).

20103313023221 is a wasteful number, since it uses less digits than its factorization.

20103313023221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300524.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 20103313023221 its reverse (12232031330102), we get a palindrome (32335344353323).

The spelling of 20103313023221 in words is "twenty trillion, one hundred three billion, three hundred thirteen million, twenty-three thousand, two hundred twenty-one".