21130314102 has 32 divisors (see below), whose sum is σ = 47326003200. Its totient is φ = 6987975624.

The previous prime is 21130314089. The next prime is 21130314113. The reversal of 21130314102 is 20141303112.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 15 ways as a sum of consecutive naturals, for example, 1533702 + ... + 1547417.

It is an arithmetic number, because the mean of its divisors is an integer number (1478937600).

Almost surely, 2^21130314102 is an apocalyptic number.

21130314102 is an abundant number, since it is smaller than the sum of its proper divisors (26195689098).

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

21130314102 is a wasteful number, since it uses less digits than its factorization.

21130314102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3081257 (or 3081251 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 21130314102 its reverse (20141303112), we get a palindrome (41271617214).

The spelling of 21130314102 in words is "twenty-one billion, one hundred thirty million, three hundred fourteen thousand, one hundred two".