11130555021 has 8 divisors (see below), whose sum is σ = 14854126560. Its totient is φ = 7413676752.

The previous prime is 11130555019. The next prime is 11130555049. The reversal of 11130555021 is 12055503111.

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

It is not a de Polignac number, because 11130555021 - 2¹ = 11130555019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11130554982 and 11130555000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11130555011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1669435 + ... + 1676088.

It is an arithmetic number, because the mean of its divisors is an integer number (1856765820).

Almost surely, 2^11130555021 is an apocalyptic number.

It is an amenable number.

11130555021 is a deficient number, since it is larger than the sum of its proper divisors (3723571539).

11130555021 is a wasteful number, since it uses less digits than its factorization.

11130555021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3346635.

The product of its (nonzero) digits is 750, while the sum is 24.

The spelling of 11130555021 in words is "eleven billion, one hundred thirty million, five hundred fifty-five thousand, twenty-one".