312332211213481 has 2 divisors, whose sum is σ = 312332211213482. Its totient is φ = 312332211213480.

The previous prime is 312332211213389. The next prime is 312332211213497. The reversal of 312332211213481 is 184312112233213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 181884198738025 + 130448012475456 = 13486445^2 + 11421384^2 .

It is a cyclic number.

It is not a de Polignac number, because 312332211213481 - 2⁷ = 312332211213353 is a prime.

It is a super-2 number, since 2×312332211213481² (a number of 30 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 312332211213481.

It is not a weakly prime, because it can be changed into another prime (312332211213881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156166105606740 + 156166105606741.

It is an arithmetic number, because the mean of its divisors is an integer number (156166105606741).

Almost surely, 2^{312332211213481} is an apocalyptic number.

It is an amenable number.

312332211213481 is a deficient number, since it is larger than the sum of its proper divisors (1).

312332211213481 is an equidigital number, since it uses as much as digits as its factorization.

312332211213481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 37.

Adding to 312332211213481 its reverse (184312112233213), we get a palindrome (496644323446694).

The spelling of 312332211213481 in words is "three hundred twelve trillion, three hundred thirty-two billion, two hundred eleven million, two hundred thirteen thousand, four hundred eighty-one".