12011135530 has 8 divisors (see below), whose sum is σ = 21620043972. Its totient is φ = 4804454208.

The previous prime is 12011135527. The next prime is 12011135537. The reversal of 12011135530 is 3553111021.

It can be written as a sum of positive squares in 2 ways, for example, as 11822430361 + 188705169 = 108731^2 + 13737^2 .

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

It is not an unprimeable number, because it can be changed into a prime (12011135537) 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, 600556767 + ... + 600556786.

Almost surely, 2^12011135530 is an apocalyptic number.

12011135530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12011135530 is a deficient number, since it is larger than the sum of its proper divisors (9608908442).

12011135530 is a wasteful number, since it uses less digits than its factorization.

12011135530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1201113560.

The product of its (nonzero) digits is 450, while the sum is 22.

Adding to 12011135530 its reverse (3553111021), we get a palindrome (15564246551).

The spelling of 12011135530 in words is "twelve billion, eleven million, one hundred thirty-five thousand, five hundred thirty".