21003113111130 has 160 divisors (see below), whose sum is σ = 57066305877504. Its totient is φ = 5542210335744.

The previous prime is 21003113111119. The next prime is 21003113111143. The reversal of 21003113111130 is 3111131130012.

21003113111130 is a `hidden beast` number, since 2 + 1 + 0 + 0 + 311 + 311 + 11 + 30 = 666.

It is a super-2 number, since 2×21003113111130² (a number of 27 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 605207359 + ... + 605242061.

Almost surely, 2^{21003113111130} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21003113111130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28533152938752).

21003113111130 is an abundant number, since it is smaller than the sum of its proper divisors (36063192766374).

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

21003113111130 is a wasteful number, since it uses less digits than its factorization.

21003113111130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42522 (or 42513 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

Adding to 21003113111130 its reverse (3111131130012), we get a palindrome (24114244241142).

The spelling of 21003113111130 in words is "twenty-one trillion, three billion, one hundred thirteen million, one hundred eleven thousand, one hundred thirty".