21204232302 has 32 divisors (see below), whose sum is σ = 46280263680. Its totient is φ = 6423235520.

The previous prime is 21204232297. The next prime is 21204232307. The reversal of 21204232302 is 20323240212.

It is an interprime number because it is at equal distance from previous prime (21204232297) and next prime (21204232307).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21204232307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134218 + ... + 245810.

It is an arithmetic number, because the mean of its divisors is an integer number (1446258240).

Almost surely, 2^21204232302 is an apocalyptic number.

21204232302 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21204232302 is an abundant number, since it is smaller than the sum of its proper divisors (25076031378).

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

21204232302 is a wasteful number, since it uses less digits than its factorization.

21204232302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114488.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 21204232302 its reverse (20323240212), we get a palindrome (41527472514).

The spelling of 21204232302 in words is "twenty-one billion, two hundred four million, two hundred thirty-two thousand, three hundred two".