11130020131 has 4 divisors (see below), whose sum is σ = 11318664600. Its totient is φ = 10941375664.

The previous prime is 11130020129. The next prime is 11130020141. The reversal of 11130020131 is 13102003111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11130020131 - 2¹ = 11130020129 is a prime.

It is a super-2 number, since 2×11130020131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11130020141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94322146 + ... + 94322263.

It is an arithmetic number, because the mean of its divisors is an integer number (2829666150).

Almost surely, 2^11130020131 is an apocalyptic number.

11130020131 is a deficient number, since it is larger than the sum of its proper divisors (188644469).

11130020131 is an equidigital number, since it uses as much as digits as its factorization.

11130020131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188644468.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 11130020131 its reverse (13102003111), we get a palindrome (24232023242).

The spelling of 11130020131 in words is "eleven billion, one hundred thirty million, twenty thousand, one hundred thirty-one".