312544323653 has 2 divisors, whose sum is σ = 312544323654. Its totient is φ = 312544323652.

The previous prime is 312544323647. The next prime is 312544323677. The reversal of 312544323653 is 356323445213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 215934007969 + 96610315684 = 464687^2 + 310822^2 .

It is a cyclic number.

It is not a de Polignac number, because 312544323653 - 2⁸ = 312544323397 is a prime.

It is a super-2 number, since 2×312544323653² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 312544323653.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312544329653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156272161826 + 156272161827.

It is an arithmetic number, because the mean of its divisors is an integer number (156272161827).

Almost surely, 2^312544323653 is an apocalyptic number.

It is an amenable number.

312544323653 is a deficient number, since it is larger than the sum of its proper divisors (1).

312544323653 is an equidigital number, since it uses as much as digits as its factorization.

312544323653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 777600, while the sum is 41.

Adding to 312544323653 its reverse (356323445213), we get a palindrome (668867768866).

The spelling of 312544323653 in words is "three hundred twelve billion, five hundred forty-four million, three hundred twenty-three thousand, six hundred fifty-three".