21113000030 has 16 divisors (see below), whose sum is σ = 38067497424. Its totient is φ = 8430956160.

The previous prime is 21113000017. The next prime is 21113000039. The reversal of 21113000030 is 3000031112.

It is a junction number, because it is equal to n+sod(n) for n = 21112999975 and 21113000020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21113000039) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1774256 + ... + 1786115.

It is an arithmetic number, because the mean of its divisors is an integer number (2379218589).

Almost surely, 2^21113000030 is an apocalyptic number.

21113000030 is a deficient number, since it is larger than the sum of its proper divisors (16954497394).

21113000030 is a wasteful number, since it uses less digits than its factorization.

21113000030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3560971.

The product of its (nonzero) digits is 18, while the sum is 11.

Adding to 21113000030 its reverse (3000031112), we get a palindrome (24113031142).

The spelling of 21113000030 in words is "twenty-one billion, one hundred thirteen million, thirty", and thus it is an aban number.