21113024514 has 16 divisors (see below), whose sum is σ = 42236150880. Its totient is φ = 7035991200.

The previous prime is 21113024503. The next prime is 21113024519. The reversal of 21113024514 is 41542031112.

It is not an unprimeable number, because it can be changed into a prime (21113024519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 393604 + ... + 444015.

It is an arithmetic number, because the mean of its divisors is an integer number (2639759430).

Almost surely, 2^21113024514 is an apocalyptic number.

21113024514 is an abundant number, since it is smaller than the sum of its proper divisors (21123126366).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21113024514 is a wasteful number, since it uses less digits than its factorization.

21113024514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841825.

The product of its (nonzero) digits is 960, while the sum is 24.

Adding to 21113024514 its reverse (41542031112), we get a palindrome (62655055626).

The spelling of 21113024514 in words is "twenty-one billion, one hundred thirteen million, twenty-four thousand, five hundred fourteen".