20323021203 has 32 divisors (see below), whose sum is σ = 30521548800. Its totient is φ = 13363908768.

The previous prime is 20323021193. The next prime is 20323021219. The reversal of 20323021203 is 30212032302.

It is a happy number.

It is not a de Polignac number, because 20323021203 - 2²⁹ = 19786150291 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20323021253) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 576088 + ... + 610346.

It is an arithmetic number, because the mean of its divisors is an integer number (953798400).

Almost surely, 2^20323021203 is an apocalyptic number.

20323021203 is a deficient number, since it is larger than the sum of its proper divisors (10198527597).

20323021203 is a wasteful number, since it uses less digits than its factorization.

20323021203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34568 (or 34562 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 20323021203 its reverse (30212032302), we get a palindrome (50535053505).

The spelling of 20323021203 in words is "twenty billion, three hundred twenty-three million, twenty-one thousand, two hundred three".