21302351110140 has 24 divisors (see below), whose sum is σ = 59646583108560. Its totient is φ = 5680626962688.

The previous prime is 21302351110133. The next prime is 21302351110189. The reversal of 21302351110140 is 4101115320312.

It is a self number, because there is not a number n which added to its sum of digits gives 21302351110140.

It is a congruent number.

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, 177519592525 + ... + 177519592644.

It is an arithmetic number, because the mean of its divisors is an integer number (2485274296190).

Almost surely, 2^{21302351110140} is an apocalyptic number.

21302351110140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21302351110140 is an abundant number, since it is smaller than the sum of its proper divisors (38344231998420).

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

21302351110140 is a wasteful number, since it uses less digits than its factorization.

21302351110140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355039185181 (or 355039185179 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

Adding to 21302351110140 its reverse (4101115320312), we get a palindrome (25403466430452).

The spelling of 21302351110140 in words is "twenty-one trillion, three hundred two billion, three hundred fifty-one million, one hundred ten thousand, one hundred forty".