21063311362 has 8 divisors (see below), whose sum is σ = 31595812092. Its totient is φ = 10531374000.

The previous prime is 21063311359. The next prime is 21063311363. The reversal of 21063311362 is 26311336012.

It can be written as a sum of positive squares in 2 ways, for example, as 21048496561 + 14814801 = 145081^2 + 3849^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 21063311362.

It is not an unprimeable number, because it can be changed into a prime (21063311363) 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, 29889 + ... + 207412.

Almost surely, 2^21063311362 is an apocalyptic number.

21063311362 is a deficient number, since it is larger than the sum of its proper divisors (10532500730).

21063311362 is a wasteful number, since it uses less digits than its factorization.

21063311362 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281684.

The product of its (nonzero) digits is 3888, while the sum is 28.

Adding to 21063311362 its reverse (26311336012), we get a palindrome (47374647374).

The spelling of 21063311362 in words is "twenty-one billion, sixty-three million, three hundred eleven thousand, three hundred sixty-two".