21303211102 has 16 divisors (see below), whose sum is σ = 33091914240. Its totient is φ = 10278542232.

The previous prime is 21303211099. The next prime is 21303211159. The reversal of 21303211102 is 20111230312.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1485102 + ... + 1499377.

It is an arithmetic number, because the mean of its divisors is an integer number (2068244640).

Almost surely, 2^21303211102 is an apocalyptic number.

21303211102 is a deficient number, since it is larger than the sum of its proper divisors (11788703138).

21303211102 is a wasteful number, since it uses less digits than its factorization.

21303211102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2984607.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 21303211102 its reverse (20111230312), we get a palindrome (41414441414).

The spelling of 21303211102 in words is "twenty-one billion, three hundred three million, two hundred eleven thousand, one hundred two".