21124344110 has 32 divisors (see below), whose sum is σ = 39300774912. Its totient is φ = 8170302880.

The previous prime is 21124344107. The next prime is 21124344133. The reversal of 21124344110 is 1144342112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 231746 + ... + 309765.

It is an arithmetic number, because the mean of its divisors is an integer number (1228149216).

Almost surely, 2^21124344110 is an apocalyptic number.

21124344110 is a deficient number, since it is larger than the sum of its proper divisors (18176430802).

21124344110 is a wasteful number, since it uses less digits than its factorization.

21124344110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541648.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 21124344110 its reverse (1144342112), we get a palindrome (22268686222).

The spelling of 21124344110 in words is "twenty-one billion, one hundred twenty-four million, three hundred forty-four thousand, one hundred ten".