21202303034 has 16 divisors (see below), whose sum is σ = 36520714080. Its totient is φ = 9130178160.

The previous prime is 21202303033. The next prime is 21202303051. The reversal of 21202303034 is 43030320212.

It is a junction number, because it is equal to n+sod(n) for n = 21202302997 and 21202303015.

It is not an unprimeable number, because it can be changed into a prime (21202303033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25361189 + ... + 25362024.

It is an arithmetic number, because the mean of its divisors is an integer number (2282544630).

Almost surely, 2^21202303034 is an apocalyptic number.

21202303034 is a deficient number, since it is larger than the sum of its proper divisors (15318411046).

21202303034 is a wasteful number, since it uses less digits than its factorization.

21202303034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50723245.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 21202303034 its reverse (43030320212), we get a palindrome (64232623246).

The spelling of 21202303034 in words is "twenty-one billion, two hundred two million, three hundred three thousand, thirty-four".