21232303302 has 16 divisors (see below), whose sum is σ = 48530979072. Its totient is φ = 6066372360.

The previous prime is 21232303297. The next prime is 21232303303. The reversal of 21232303302 is 20330323212.

It is a super-4 number, since 4×21232303302⁴ (a number of 42 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21232303303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252765474 + ... + 252765557.

It is an arithmetic number, because the mean of its divisors is an integer number (3033186192).

Almost surely, 2^21232303302 is an apocalyptic number.

21232303302 is an abundant number, since it is smaller than the sum of its proper divisors (27298675770).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21232303302 is a wasteful number, since it uses less digits than its factorization.

21232303302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505531043.

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 21232303302 its reverse (20330323212), we get a palindrome (41562626514).

The spelling of 21232303302 in words is "twenty-one billion, two hundred thirty-two million, three hundred three thousand, three hundred two".