312240112144 has 20 divisors (see below), whose sum is σ = 606650368320. Its totient is φ = 155685178400.

The previous prime is 312240112141. The next prime is 312240112181. The reversal of 312240112144 is 441211042213.

It is not an unprimeable number, because it can be changed into a prime (312240112141) 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, 27173932 + ... + 27185419.

It is an arithmetic number, because the mean of its divisors is an integer number (30332518416).

Almost surely, 2^312240112144 is an apocalyptic number.

It is an amenable number.

312240112144 is a deficient number, since it is larger than the sum of its proper divisors (294410256176).

312240112144 is a wasteful number, since it uses less digits than its factorization.

312240112144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54359718 (or 54359712 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 312240112144 its reverse (441211042213), we get a palindrome (753451154357).

The spelling of 312240112144 in words is "three hundred twelve billion, two hundred forty million, one hundred twelve thousand, one hundred forty-four".