312144251231 has 12 divisors (see below), whose sum is σ = 335095270272. Its totient is φ = 289758318336.

The previous prime is 312144251191. The next prime is 312144251239. The reversal of 312144251231 is 132152441213.

It is a happy number.

It is not a de Polignac number, because 312144251231 - 2¹⁴ = 312144234847 is a prime.

It is a super-2 number, since 2×312144251231² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312144251194 and 312144251203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312144251239) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1632191 + ... + 1813376.

It is an arithmetic number, because the mean of its divisors is an integer number (27924605856).

Almost surely, 2^312144251231 is an apocalyptic number.

312144251231 is a deficient number, since it is larger than the sum of its proper divisors (22951019041).

312144251231 is an equidigital number, since it uses as much as digits as its factorization.

312144251231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3445730 (or 3445657 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

Adding to 312144251231 its reverse (132152441213), we get a palindrome (444296692444).

The spelling of 312144251231 in words is "three hundred twelve billion, one hundred forty-four million, two hundred fifty-one thousand, two hundred thirty-one".