12306231156 has 24 divisors (see below), whose sum is σ = 28717057600. Its totient is φ = 4101717312.

The previous prime is 12306231149. The next prime is 12306231187. The reversal of 12306231156 is 65113260321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122520 + ... + 199056.

Almost surely, 2^12306231156 is an apocalyptic number.

It is an amenable number.

12306231156 is an abundant number, since it is smaller than the sum of its proper divisors (16410826444).

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

12306231156 is a wasteful number, since it uses less digits than its factorization.

12306231156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89943 (or 89941 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

Adding to 12306231156 its reverse (65113260321), we get a palindrome (77419491477).

The spelling of 12306231156 in words is "twelve billion, three hundred six million, two hundred thirty-one thousand, one hundred fifty-six".