21314654323250 has 64 divisors (see below), whose sum is σ = 42103783238400. Its totient is φ = 8057382940800.

The previous prime is 21314654323247. The next prime is 21314654323309. The reversal of 21314654323250 is 5232345641312.

It is a junction number, because it is equal to n+sod(n) for n = 21314654323198 and 21314654323207.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3542942 + ... + 7428441.

It is an arithmetic number, because the mean of its divisors is an integer number (657871613100).

Almost surely, 2^{21314654323250} is an apocalyptic number.

21314654323250 is a deficient number, since it is larger than the sum of its proper divisors (20789128915150).

21314654323250 is a wasteful number, since it uses less digits than its factorization.

21314654323250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10971828 (or 10971818 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 41.

Adding to 21314654323250 its reverse (5232345641312), we get a palindrome (26546999964562).

The spelling of 21314654323250 in words is "twenty-one trillion, three hundred fourteen billion, six hundred fifty-four million, three hundred twenty-three thousand, two hundred fifty".