21053263144302 has 80 divisors (see below), whose sum is σ = 47969081344800. Its totient is φ = 6899712269760.

The previous prime is 21053263144279. The next prime is 21053263144313. The reversal of 21053263144302 is 20344136235012.

21053263144302 is a `hidden beast` number, since 2 + 1 + 0 + 5 + 32 + 6 + 314 + 4 + 302 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 22356199 + ... + 23278877.

It is an arithmetic number, because the mean of its divisors is an integer number (599613516810).

Almost surely, 2^{21053263144302} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21053263144302, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23984540672400).

21053263144302 is an abundant number, since it is smaller than the sum of its proper divisors (26915818200498).

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

21053263144302 is a wasteful number, since it uses less digits than its factorization.

21053263144302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 925063 (or 925054 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

Adding to 21053263144302 its reverse (20344136235012), we get a palindrome (41397399379314).

The spelling of 21053263144302 in words is "twenty-one trillion, fifty-three billion, two hundred sixty-three million, one hundred forty-four thousand, three hundred two".