340312588391 has 2 divisors, whose sum is σ = 340312588392. Its totient is φ = 340312588390.

The previous prime is 340312588373. The next prime is 340312588459. The reversal of 340312588391 is 193885213043.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 340312588391 - 2³⁰ = 339238846567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340312578391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170156294195 + 170156294196.

It is an arithmetic number, because the mean of its divisors is an integer number (170156294196).

Almost surely, 2^340312588391 is an apocalyptic number.

340312588391 is a deficient number, since it is larger than the sum of its proper divisors (1).

340312588391 is an equidigital number, since it uses as much as digits as its factorization.

340312588391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 622080, while the sum is 47.

The spelling of 340312588391 in words is "three hundred forty billion, three hundred twelve million, five hundred eighty-eight thousand, three hundred ninety-one".