312144143412 has 12 divisors (see below), whose sum is σ = 728336334656. Its totient is φ = 104048047800.

The previous prime is 312144143401. The next prime is 312144143419. The reversal of 312144143412 is 214341441213.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×312144143412² (a number of 24 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 312144143412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312144143419) 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, 13006005964 + ... + 13006005987.

Almost surely, 2^312144143412 is an apocalyptic number.

It is an amenable number.

312144143412 is an abundant number, since it is smaller than the sum of its proper divisors (416192191244).

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

312144143412 is a wasteful number, since it uses less digits than its factorization.

312144143412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26012011958 (or 26012011956 counting only the distinct ones).

The product of its digits is 9216, while the sum is 30.

Adding to 312144143412 its reverse (214341441213), we get a palindrome (526485584625).

The spelling of 312144143412 in words is "three hundred twelve billion, one hundred forty-four million, one hundred forty-three thousand, four hundred twelve".