312232440144 has 20 divisors (see below), whose sum is σ = 806600470496. Its totient is φ = 104077480032.

The previous prime is 312232440127. The next prime is 312232440161. The reversal of 312232440144 is 441044232213.

It is an interprime number because it is at equal distance from previous prime (312232440127) and next prime (312232440161).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3252421204 + ... + 3252421299.

Almost surely, 2^312232440144 is an apocalyptic number.

It is an amenable number.

312232440144 is an abundant number, since it is smaller than the sum of its proper divisors (494368030352).

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

312232440144 is a wasteful number, since it uses less digits than its factorization.

312232440144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6504842514 (or 6504842508 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 312232440144 its reverse (441044232213), we get a palindrome (753276672357).

The spelling of 312232440144 in words is "three hundred twelve billion, two hundred thirty-two million, four hundred forty thousand, one hundred forty-four".