20011001130 has 64 divisors (see below), whose sum is σ = 53597911680. Its totient is φ = 5312742912.

The previous prime is 20011001093. The next prime is 20011001137. The reversal of 20011001130 is 3110011002.

It is a super-2 number, since 2×20011001130² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (20011001137) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 101959 + ... + 224538.

It is an arithmetic number, because the mean of its divisors is an integer number (837467370).

Almost surely, 2^20011001130 is an apocalyptic number.

20011001130 is an abundant number, since it is smaller than the sum of its proper divisors (33586910550).

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

20011001130 is a wasteful number, since it uses less digits than its factorization.

20011001130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326740 (or 326734 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

Adding to 20011001130 its reverse (3110011002), we get a palindrome (23121012132).

The spelling of 20011001130 in words is "twenty billion, eleven million, one thousand, one hundred thirty".