312144335552 has 28 divisors (see below), whose sum is σ = 707898762000. Its totient is φ = 133776143616.

The previous prime is 312144335519. The next prime is 312144335641. The reversal of 312144335552 is 255533441213.

It is a tau number, because it is divible by the number of its divisors (28).

It is a super-2 number, since 2×312144335552² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 348374927 + ... + 348375822.

Almost surely, 2^312144335552 is an apocalyptic number.

312144335552 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

312144335552 is an abundant number, since it is smaller than the sum of its proper divisors (395754426448).

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

312144335552 is an equidigital number, since it uses as much as digits as its factorization.

312144335552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696750768 (or 696750758 counting only the distinct ones).

The product of its digits is 216000, while the sum is 38.

Adding to 312144335552 its reverse (255533441213), we get a palindrome (567677776765).

The spelling of 312144335552 in words is "three hundred twelve billion, one hundred forty-four million, three hundred thirty-five thousand, five hundred fifty-two".