21102343120132 has 24 divisors (see below), whose sum is σ = 37085484752064. Its totient is φ = 10506537747552.

The previous prime is 21102343120121. The next prime is 21102343120169. The reversal of 21102343120132 is 23102134320112.

It is a junction number, because it is equal to n+sod(n) for n = 21102343120097 and 21102343120106.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4145218 + ... + 7706329.

It is an arithmetic number, because the mean of its divisors is an integer number (1545228531336).

Almost surely, 2^{21102343120132} is an apocalyptic number.

It is an amenable number.

21102343120132 is a deficient number, since it is larger than the sum of its proper divisors (15983141631932).

21102343120132 is a wasteful number, since it uses less digits than its factorization.

21102343120132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11853435 (or 11853433 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 21102343120132 its reverse (23102134320112), we get a palindrome (44204477440244).

The spelling of 21102343120132 in words is "twenty-one trillion, one hundred two billion, three hundred forty-three million, one hundred twenty thousand, one hundred thirty-two".