21110513030 has 16 divisors (see below), whose sum is σ = 38519457984. Its totient is φ = 8328530880.

The previous prime is 21110513023. The next prime is 21110513041. The reversal of 21110513030 is 3031501112.

It is a congruent number.

It is an unprimeable number.

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, 14458526 + ... + 14459985.

It is an arithmetic number, because the mean of its divisors is an integer number (2407466124).

Almost surely, 2^21110513030 is an apocalyptic number.

21110513030 is a deficient number, since it is larger than the sum of its proper divisors (17408944954).

21110513030 is a wasteful number, since it uses less digits than its factorization.

21110513030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28918591.

The product of its (nonzero) digits is 90, while the sum is 17.

The spelling of 21110513030 in words is "twenty-one billion, one hundred ten million, five hundred thirteen thousand, thirty".