21063023360 has 36 divisors (see below), whose sum is σ = 50452526208. Its totient is φ = 8425208832.

The previous prime is 21063023309. The next prime is 21063023369. The reversal of 21063023360 is 6332036012.

It is not an unprimeable number, because it can be changed into a prime (21063023369) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8226464 + ... + 8229023.

Almost surely, 2^21063023360 is an apocalyptic number.

21063023360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21063023360 is an abundant number, since it is smaller than the sum of its proper divisors (29389502848).

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

21063023360 is an equidigital number, since it uses as much as digits as its factorization.

21063023360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16455508 (or 16455494 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 21063023360 its reverse (6332036012), we get a palindrome (27395059372).

The spelling of 21063023360 in words is "twenty-one billion, sixty-three million, twenty-three thousand, three hundred sixty".