21063101364 has 36 divisors (see below), whose sum is σ = 53292743140. Its totient is φ = 7014453120.

The previous prime is 21063101347. The next prime is 21063101369. The reversal of 21063101364 is 46310136012.

21063101364 is a `hidden beast` number, since 2 + 10 + 631 + 0 + 13 + 6 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 16035156900 + 5027944464 = 126630^2 + 70908^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21063101369) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 235177 + ... + 312144.

Almost surely, 2^21063101364 is an apocalyptic number.

It is an amenable number.

21063101364 is an abundant number, since it is smaller than the sum of its proper divisors (32229641776).

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

21063101364 is a wasteful number, since it uses less digits than its factorization.

21063101364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548400 (or 548395 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

Adding to 21063101364 its reverse (46310136012), we get a palindrome (67373237376).

The spelling of 21063101364 in words is "twenty-one billion, sixty-three million, one hundred one thousand, three hundred sixty-four".