21114304102 has 4 divisors (see below), whose sum is σ = 31671456156. Its totient is φ = 10557152050.

The previous prime is 21114304093. The next prime is 21114304109. The reversal of 21114304102 is 20140341112.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 21114304102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21114304109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5278576024 + ... + 5278576027.

It is an arithmetic number, because the mean of its divisors is an integer number (7917864039).

Almost surely, 2^21114304102 is an apocalyptic number.

21114304102 is a deficient number, since it is larger than the sum of its proper divisors (10557152054).

21114304102 is a wasteful number, since it uses less digits than its factorization.

21114304102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10557152053.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 21114304102 its reverse (20140341112), we get a palindrome (41254645214).

The spelling of 21114304102 in words is "twenty-one billion, one hundred fourteen million, three hundred four thousand, one hundred two".