21011002002130 has 32 divisors (see below), whose sum is σ = 44142263179776. Its totient is φ = 7050500366784.

The previous prime is 21011002002101. The next prime is 21011002002157. The reversal of 21011002002130 is 3120020011012.

It is a self number, because there is not a number n which added to its sum of digits gives 21011002002130.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 3193158109 + ... + 3193164688.

It is an arithmetic number, because the mean of its divisors is an integer number (1379445724368).

Almost surely, 2^{21011002002130} is an apocalyptic number.

21011002002130 is an abundant number, since it is smaller than the sum of its proper divisors (23131261177646).

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

21011002002130 is a wasteful number, since it uses less digits than its factorization.

21011002002130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6386322858.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 21011002002130 its reverse (3120020011012), we get a palindrome (24131022013142).

The spelling of 21011002002130 in words is "twenty-one trillion, eleven billion, two million, two thousand, one hundred thirty".