21325314102 has 16 divisors (see below), whose sum is σ = 42738212352. Its totient is φ = 7093840680.

The previous prime is 21325314083. The next prime is 21325314163. The reversal of 21325314102 is 20141352312.

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, 3646174 + ... + 3652017.

It is an arithmetic number, because the mean of its divisors is an integer number (2671138272).

Almost surely, 2^21325314102 is an apocalyptic number.

21325314102 is an abundant number, since it is smaller than the sum of its proper divisors (21412898250).

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

21325314102 is a wasteful number, since it uses less digits than its factorization.

21325314102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7298683.

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 21325314102 its reverse (20141352312), we get a palindrome (41466666414).

The spelling of 21325314102 in words is "twenty-one billion, three hundred twenty-five million, three hundred fourteen thousand, one hundred two".