21344113210 has 16 divisors (see below), whose sum is σ = 43907890176. Its totient is φ = 7317981648.

The previous prime is 21344113181. The next prime is 21344113213. The reversal of 21344113210 is 1231144312.

It is not an unprimeable number, because it can be changed into a prime (21344113213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152457882 + ... + 152458021.

It is an arithmetic number, because the mean of its divisors is an integer number (2744243136).

Almost surely, 2^21344113210 is an apocalyptic number.

21344113210 is an abundant number, since it is smaller than the sum of its proper divisors (22563776966).

21344113210 is a wasteful number, since it uses less digits than its factorization.

21344113210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304915917.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 21344113210 its reverse (1231144312), we get a palindrome (22575257522).

The spelling of 21344113210 in words is "twenty-one billion, three hundred forty-four million, one hundred thirteen thousand, two hundred ten".