21120020001130 has 16 divisors (see below), whose sum is σ = 38035015586784. Its totient is φ = 8443790314960.

The previous prime is 21120020001109. The next prime is 21120020001131. The reversal of 21120020001130 is 3110002002112.

It is a self number, because there is not a number n which added to its sum of digits gives 21120020001130.

It is not an unprimeable number, because it can be changed into a prime (21120020001131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 527189656 + ... + 527229715.

It is an arithmetic number, because the mean of its divisors is an integer number (2377188474174).

Almost surely, 2^{21120020001130} is an apocalyptic number.

21120020001130 is a deficient number, since it is larger than the sum of its proper divisors (16914995585654).

21120020001130 is a wasteful number, since it uses less digits than its factorization.

21120020001130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1054421381.

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

Adding to 21120020001130 its reverse (3110002002112), we get a palindrome (24230022003242).

The spelling of 21120020001130 in words is "twenty-one trillion, one hundred twenty billion, twenty million, one thousand, one hundred thirty".