21103230302 has 24 divisors (see below), whose sum is σ = 39764767728. Its totient is φ = 8222037120.

The previous prime is 21103230241. The next prime is 21103230367. The reversal of 21103230302 is 20303230112.

It is a super-2 number, since 2×21103230302² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6227123 + ... + 6230510.

It is an arithmetic number, because the mean of its divisors is an integer number (1656865322).

Almost surely, 2^21103230302 is an apocalyptic number.

21103230302 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21103230302 is a deficient number, since it is larger than the sum of its proper divisors (18661537426).

21103230302 is a wasteful number, since it uses less digits than its factorization.

21103230302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12457664 (or 12457653 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 21103230302 its reverse (20303230112), we get a palindrome (41406460414).

The spelling of 21103230302 in words is "twenty-one billion, one hundred three million, two hundred thirty thousand, three hundred two".