21232310202 has 48 divisors (see below), whose sum is σ = 46645297920. Its totient is φ = 6979252896.

The previous prime is 21232310159. The next prime is 21232310219. The reversal of 21232310202 is 20201323212.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 419148 + ... + 467064.

It is an arithmetic number, because the mean of its divisors is an integer number (971777040).

Almost surely, 2^21232310202 is an apocalyptic number.

21232310202 is an abundant number, since it is smaller than the sum of its proper divisors (25412987718).

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

21232310202 is a wasteful number, since it uses less digits than its factorization.

21232310202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48267 (or 48264 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 21232310202 its reverse (20201323212), we get a palindrome (41433633414).

It can be divided in two parts, 2123 and 2310202, that added together give a triangular number (2312325 = T₂₁₅₀).

The spelling of 21232310202 in words is "twenty-one billion, two hundred thirty-two million, three hundred ten thousand, two hundred two".