12013325530 has 64 divisors (see below), whose sum is σ = 22572288000. Its totient is φ = 4598415360.

The previous prime is 12013325473. The next prime is 12013325539. The reversal of 12013325530 is 3552331021.

It is a junction number, because it is equal to n+sod(n) for n = 12013325495 and 12013325504.

It is not an unprimeable number, because it can be changed into a prime (12013325539) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11905666 + ... + 11906674.

It is an arithmetic number, because the mean of its divisors is an integer number (352692000).

Almost surely, 2^12013325530 is an apocalyptic number.

12013325530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12013325530 is a deficient number, since it is larger than the sum of its proper divisors (10558962470).

12013325530 is a wasteful number, since it uses less digits than its factorization.

12013325530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1439.

The product of its (nonzero) digits is 2700, while the sum is 25.

Adding to 12013325530 its reverse (3552331021), we get a palindrome (15565656551).

The spelling of 12013325530 in words is "twelve billion, thirteen million, three hundred twenty-five thousand, five hundred thirty".