20102102303 has 16 divisors (see below), whose sum is σ = 20939520000. Its totient is φ = 19277209440.

The previous prime is 20102102291. The next prime is 20102102309. The reversal of 20102102303 is 30320120102.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20102102303 - 2¹⁴ = 20102085919 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 (20102102309) 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, 1757798 + ... + 1769196.

It is an arithmetic number, because the mean of its divisors is an integer number (1308720000).

Almost surely, 2^20102102303 is an apocalyptic number.

20102102303 is a deficient number, since it is larger than the sum of its proper divisors (837417697).

20102102303 is a wasteful number, since it uses less digits than its factorization.

20102102303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11942.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 20102102303 its reverse (30320120102), we get a palindrome (50422222405).

The spelling of 20102102303 in words is "twenty billion, one hundred two million, one hundred two thousand, three hundred three".