21302203102 has 32 divisors (see below), whose sum is σ = 33346969344. Its totient is φ = 10194336000.

The previous prime is 21302203093. The next prime is 21302203121. The reversal of 21302203102 is 20130220312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10375108 + ... + 10377160.

It is an arithmetic number, because the mean of its divisors is an integer number (1042092792).

Almost surely, 2^21302203102 is an apocalyptic number.

21302203102 is a deficient number, since it is larger than the sum of its proper divisors (12044766242).

21302203102 is a wasteful number, since it uses less digits than its factorization.

21302203102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3844.

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

Adding to 21302203102 its reverse (20130220312), we get a palindrome (41432423414).

It can be divided in two parts, 2130220310 and 2, that added together give a palindrome (2130220312).

The spelling of 21302203102 in words is "twenty-one billion, three hundred two million, two hundred three thousand, one hundred two".