21301013242 has 16 divisors (see below), whose sum is σ = 33061219200. Its totient is φ = 10280782960.

The previous prime is 21301013233. The next prime is 21301013267. The reversal of 21301013242 is 24231010312.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212859 + ... + 296497.

It is an arithmetic number, because the mean of its divisors is an integer number (2066326200).

Almost surely, 2^21301013242 is an apocalyptic number.

21301013242 is a deficient number, since it is larger than the sum of its proper divisors (11760205958).

21301013242 is a wasteful number, since it uses less digits than its factorization.

21301013242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88061.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 21301013242 its reverse (24231010312), we get a palindrome (45532023554).

The spelling of 21301013242 in words is "twenty-one billion, three hundred one million, thirteen thousand, two hundred forty-two".