12307323144 has 32 divisors (see below), whose sum is σ = 31760835840. Its totient is φ = 3970104000.

The previous prime is 12307323121. The next prime is 12307323167. The reversal of 12307323144 is 44132370321.

It is an interprime number because it is at equal distance from previous prime (12307323121) and next prime (12307323167).

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, 8270307 + ... + 8271794.

It is an arithmetic number, because the mean of its divisors is an integer number (992526120).

Almost surely, 2^12307323144 is an apocalyptic number.

It is an amenable number.

12307323144 is an abundant number, since it is smaller than the sum of its proper divisors (19453512696).

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

12307323144 is a wasteful number, since it uses less digits than its factorization.

12307323144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16542141 (or 16542137 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 30.

Adding to 12307323144 its reverse (44132370321), we get a palindrome (56439693465).

The spelling of 12307323144 in words is "twelve billion, three hundred seven million, three hundred twenty-three thousand, one hundred forty-four".