21203301102 has 64 divisors (see below), whose sum is σ = 45902039040. Its totient is φ = 6504014336.

The previous prime is 21203301089. The next prime is 21203301103. The reversal of 21203301102 is 20110330212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21203301103) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7472428 + ... + 7475264.

It is an arithmetic number, because the mean of its divisors is an integer number (717219360).

Almost surely, 2^21203301102 is an apocalyptic number.

21203301102 is an abundant number, since it is smaller than the sum of its proper divisors (24698737938).

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

21203301102 is a wasteful number, since it uses less digits than its factorization.

21203301102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4465.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 21203301102 its reverse (20110330212), we get a palindrome (41313631314).

The spelling of 21203301102 in words is "twenty-one billion, two hundred three million, three hundred one thousand, one hundred two".