21231112010130 has 96 divisors (see below), whose sum is σ = 60567242149440. Its totient is φ = 5117185127040.

The previous prime is 21231112010093. The next prime is 21231112010159. The reversal of 21231112010130 is 3101021113212.

21231112010130 is a `hidden beast` number, since 21 + 2 + 311 + 1 + 201 + 0 + 130 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 61810140 + ... + 62152679.

It is an arithmetic number, because the mean of its divisors is an integer number (630908772390).

Almost surely, 2^{21231112010130} is an apocalyptic number.

21231112010130 is an abundant number, since it is smaller than the sum of its proper divisors (39336130139310).

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

21231112010130 is a wasteful number, since it uses less digits than its factorization.

21231112010130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123963016 (or 123963013 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 21231112010130 its reverse (3101021113212), we get a palindrome (24332133123342).

The spelling of 21231112010130 in words is "twenty-one trillion, two hundred thirty-one billion, one hundred twelve million, ten thousand, one hundred thirty".