21110013332130 has 128 divisors (see below), whose sum is σ = 54296292314880. Its totient is φ = 5236777820160.

The previous prime is 21110013332113. The next prime is 21110013332137. The reversal of 21110013332130 is 3123331001112.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21110013332097 and 21110013332106.

It is not an unprimeable number, because it can be changed into a prime (21110013332137) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 20106694 + ... + 21130526.

It is an arithmetic number, because the mean of its divisors is an integer number (424189783710).

Almost surely, 2^{21110013332130} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21110013332130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27148146157440).

21110013332130 is an abundant number, since it is smaller than the sum of its proper divisors (33186278982750).

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

21110013332130 is a wasteful number, since it uses less digits than its factorization.

21110013332130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1024516.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 21110013332130 its reverse (3123331001112), we get a palindrome (24233344333242).

The spelling of 21110013332130 in words is "twenty-one trillion, one hundred ten billion, thirteen million, three hundred thirty-two thousand, one hundred thirty".