11130020032121 has 4 divisors (see below), whose sum is σ = 11784727092852. Its totient is φ = 10475312971392.

The previous prime is 11130020032093. The next prime is 11130020032127. The reversal of 11130020032121 is 12123002003111.

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

It can be written as a sum of positive squares in 2 ways, for example, as 8078584021225 + 3051436010896 = 2842285^2 + 1746836^2 .

It is a cyclic number.

It is not a de Polignac number, because 11130020032121 - 2³⁴ = 11112840162937 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 654707060713 = 11130020032121 / (1 + 1 + 1 + 3 + 0 + 0 + 2 + 0 + 0 + 3 + 2 + 1 + 2 + 1).

It is a self number, because there is not a number n which added to its sum of digits gives 11130020032121.

It is not an unprimeable number, because it can be changed into a prime (11130020032127) 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, 327353530340 + ... + 327353530373.

It is an arithmetic number, because the mean of its divisors is an integer number (2946181773213).

Almost surely, 2^{11130020032121} is an apocalyptic number.

It is an amenable number.

11130020032121 is a deficient number, since it is larger than the sum of its proper divisors (654707060731).

11130020032121 is an equidigital number, since it uses as much as digits as its factorization.

11130020032121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654707060730.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 11130020032121 its reverse (12123002003111), we get a palindrome (23253022035232).

The spelling of 11130020032121 in words is "eleven trillion, one hundred thirty billion, twenty million, thirty-two thousand, one hundred twenty-one".