21202103032 has 24 divisors (see below), whose sum is σ = 43696485000. Its totient is φ = 9637319120.

The previous prime is 21202103003. The next prime is 21202103077. The reversal of 21202103032 is 23030120212.

It is a junction number, because it is equal to n+sod(n) for n = 21202102997 and 21202103015.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 10950532 + ... + 10952467.

It is an arithmetic number, because the mean of its divisors is an integer number (1820686875).

Almost surely, 2^21202103032 is an apocalyptic number.

21202103032 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21202103032 is an abundant number, since it is smaller than the sum of its proper divisors (22494381968).

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

21202103032 is a wasteful number, since it uses less digits than its factorization.

21202103032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21903027 (or 21903012 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 21202103032 its reverse (23030120212), we get a palindrome (44232223244).

The spelling of 21202103032 in words is "twenty-one billion, two hundred two million, one hundred three thousand, thirty-two".