21110033130 has 64 divisors (see below), whose sum is σ = 50992139520. Its totient is φ = 5592969216.

The previous prime is 21110033093. The next prime is 21110033143. The reversal of 21110033130 is 3133001112.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5689716 + ... + 5693424.

It is an arithmetic number, because the mean of its divisors is an integer number (796752180).

Almost surely, 2^21110033130 is an apocalyptic number.

21110033130 is an abundant number, since it is smaller than the sum of its proper divisors (29882106390).

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

21110033130 is a wasteful number, since it uses less digits than its factorization.

21110033130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4895.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 21110033130 its reverse (3133001112), we get a palindrome (24243034242).

The spelling of 21110033130 in words is "twenty-one billion, one hundred ten million, thirty-three thousand, one hundred thirty".