11512304530 has 8 divisors (see below), whose sum is σ = 20722148172. Its totient is φ = 4604921808.

The previous prime is 11512304527. The next prime is 11512304533. The reversal of 11512304530 is 3540321511.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11512304527) and next prime (11512304533).

It can be written as a sum of positive squares in 2 ways, for example, as 10179397449 + 1332907081 = 100893^2 + 36509^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 11512304495 and 11512304504.

It is not an unprimeable number, because it can be changed into a prime (11512304533) 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 3 ways as a sum of consecutive naturals, for example, 575615217 + ... + 575615236.

Almost surely, 2^11512304530 is an apocalyptic number.

11512304530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11512304530 is a deficient number, since it is larger than the sum of its proper divisors (9209843642).

11512304530 is a wasteful number, since it uses less digits than its factorization.

11512304530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1151230460.

The product of its (nonzero) digits is 1800, while the sum is 25.

The spelling of 11512304530 in words is "eleven billion, five hundred twelve million, three hundred four thousand, five hundred thirty".