21112130003130 has 96 divisors (see below), whose sum is σ = 55438715329920. Its totient is φ = 5573788022400.

The previous prime is 21112130003117. The next prime is 21112130003131. The reversal of 21112130003130 is 3130003121112.

21112130003130 is a `hidden beast` number, since 21 + 11 + 21 + 300 + 0 + 313 + 0 = 666.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (21112130003131) 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 47 ways as a sum of consecutive naturals, for example, 152852041 + ... + 152990099.

It is an arithmetic number, because the mean of its divisors is an integer number (577486618020).

Almost surely, 2^{21112130003130} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21112130003130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27719357664960).

21112130003130 is an abundant number, since it is smaller than the sum of its proper divisors (34326585326790).

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

21112130003130 is a wasteful number, since it uses less digits than its factorization.

21112130003130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154996 (or 154993 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 21112130003130 its reverse (3130003121112), we get a palindrome (24242133124242).

The spelling of 21112130003130 in words is "twenty-one trillion, one hundred twelve billion, one hundred thirty million, three thousand, one hundred thirty".