11130043021 has 8 divisors (see below), whose sum is σ = 11786789304. Its totient is φ = 10473523200.

The previous prime is 11130042977. The next prime is 11130043027. The reversal of 11130043021 is 12034003111.

It can be written as a sum of positive squares in 4 ways, for example, as 751527396 + 10378515625 = 27414^2 + 101875^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11130043021 - 2¹³ = 11130034829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11130042986 and 11130043004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11130043027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50371 + ... + 157471.

It is an arithmetic number, because the mean of its divisors is an integer number (1473348663).

Almost surely, 2^11130043021 is an apocalyptic number.

It is an amenable number.

11130043021 is a deficient number, since it is larger than the sum of its proper divisors (656746283).

11130043021 is a wasteful number, since it uses less digits than its factorization.

11130043021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113231.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 11130043021 its reverse (12034003111), we get a palindrome (23164046132).

The spelling of 11130043021 in words is "eleven billion, one hundred thirty million, forty-three thousand, twenty-one".