12013030326 has 64 divisors (see below), whose sum is σ = 27618796800. Its totient is φ = 3445084800.

The previous prime is 12013030319. The next prime is 12013030391. The reversal of 12013030326 is 62303031021.

It is a super-2 number, since 2×12013030326² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1325980 + ... + 1335008.

It is an arithmetic number, because the mean of its divisors is an integer number (431543700).

Almost surely, 2^12013030326 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12013030326, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13809398400).

12013030326 is an abundant number, since it is smaller than the sum of its proper divisors (15605766474).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12013030326 is a wasteful number, since it uses less digits than its factorization.

12013030326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10125.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 12013030326 its reverse (62303031021), we get a palindrome (74316061347).

The spelling of 12013030326 in words is "twelve billion, thirteen million, thirty thousand, three hundred twenty-six".