312307247143 has 2 divisors, whose sum is σ = 312307247144. Its totient is φ = 312307247142.

The previous prime is 312307247081. The next prime is 312307247173. The reversal of 312307247143 is 341742703213.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 312307247143 - 2⁹ = 312307246631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312307247173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156153623571 + 156153623572.

It is an arithmetic number, because the mean of its divisors is an integer number (156153623572).

Almost surely, 2^312307247143 is an apocalyptic number.

312307247143 is a deficient number, since it is larger than the sum of its proper divisors (1).

312307247143 is an equidigital number, since it uses as much as digits as its factorization.

312307247143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84672, while the sum is 37.

The spelling of 312307247143 in words is "three hundred twelve billion, three hundred seven million, two hundred forty-seven thousand, one hundred forty-three".