312343031431033 has 2 divisors, whose sum is σ = 312343031431034. Its totient is φ = 312343031431032.

The previous prime is 312343031431021. The next prime is 312343031431087. The reversal of 312343031431033 is 330134130343213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 158118226293049 + 154224805137984 = 12574507^2 + 12418728^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312343031431033 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 312343031431033.

It is not a weakly prime, because it can be changed into another prime (312343031438033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156171515715516 + 156171515715517.

It is an arithmetic number, because the mean of its divisors is an integer number (156171515715517).

Almost surely, 2^{312343031431033} is an apocalyptic number.

It is an amenable number.

312343031431033 is a deficient number, since it is larger than the sum of its proper divisors (1).

312343031431033 is an equidigital number, since it uses as much as digits as its factorization.

312343031431033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69984, while the sum is 34.

Adding to 312343031431033 its reverse (330134130343213), we get a palindrome (642477161774246).

The spelling of 312343031431033 in words is "three hundred twelve trillion, three hundred forty-three billion, thirty-one million, four hundred thirty-one thousand, thirty-three".