11130001121 has 4 divisors (see below), whose sum is σ = 11134823700. Its totient is φ = 11125178544.

The previous prime is 11130001079. The next prime is 11130001123. The reversal of 11130001121 is 12110003111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12110003111 = 4637 ⋅2611603.

It can be written as a sum of positive squares in 2 ways, for example, as 5458254400 + 5671746721 = 73880^2 + 75311^2 .

It is a cyclic number.

It is not a de Polignac number, because 11130001121 - 2²⁶ = 11062892257 is a prime.

It is a super-2 number, since 2×11130001121² (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 (11130001123) 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, 2407826 + ... + 2412443.

It is an arithmetic number, because the mean of its divisors is an integer number (2783705925).

Almost surely, 2^11130001121 is an apocalyptic number.

It is an amenable number.

11130001121 is a deficient number, since it is larger than the sum of its proper divisors (4822579).

11130001121 is an equidigital number, since it uses as much as digits as its factorization.

11130001121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4822578.

The product of its (nonzero) digits is 6, while the sum is 11.

Adding to 11130001121 its reverse (12110003111), we get a palindrome (23240004232).

The spelling of 11130001121 in words is "eleven billion, one hundred thirty million, one thousand, one hundred twenty-one".