21014243410 has 8 divisors (see below), whose sum is σ = 37825638156. Its totient is φ = 8405697360.

The previous prime is 21014243401. The next prime is 21014243413. The reversal of 21014243410 is 1434241012.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 18938438689 + 2075804721 = 137617^2 + 45561^2 .

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

It is not an unprimeable number, because it can be changed into a prime (21014243413) 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, 1050712161 + ... + 1050712180.

Almost surely, 2^21014243410 is an apocalyptic number.

21014243410 is a deficient number, since it is larger than the sum of its proper divisors (16811394746).

21014243410 is a wasteful number, since it uses less digits than its factorization.

21014243410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2101424348.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 21014243410 its reverse (1434241012), we get a palindrome (22448484422).

The spelling of 21014243410 in words is "twenty-one billion, fourteen million, two hundred forty-three thousand, four hundred ten".