21113040010 has 32 divisors (see below), whose sum is σ = 40898645712. Its totient is φ = 7818132480.

The previous prime is 21113039971. The next prime is 21113040037. The reversal of 21113040010 is 1004031112.

It can be written as a sum of positive squares in 8 ways, for example, as 6894146961 + 14218893049 = 83031^2 + 119243^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1007617 + ... + 1028356.

Almost surely, 2^21113040010 is an apocalyptic number.

21113040010 is a deficient number, since it is larger than the sum of its proper divisors (19785605702).

21113040010 is a wasteful number, since it uses less digits than its factorization.

21113040010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2036058.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 21113040010 its reverse (1004031112), we get a palindrome (22117071122).

The spelling of 21113040010 in words is "twenty-one billion, one hundred thirteen million, forty thousand, ten".