340313421389 has 2 divisors, whose sum is σ = 340313421390. Its totient is φ = 340313421388.

The previous prime is 340313421361. The next prime is 340313421421. The reversal of 340313421389 is 983124313043.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 231617925289 + 108695496100 = 481267^2 + 329690^2 .

It is a cyclic number.

It is not a de Polignac number, because 340313421389 - 2¹² = 340313417293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340313423389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170156710694 + 170156710695.

It is an arithmetic number, because the mean of its divisors is an integer number (170156710695).

Almost surely, 2^340313421389 is an apocalyptic number.

It is an amenable number.

340313421389 is a deficient number, since it is larger than the sum of its proper divisors (1).

340313421389 is an equidigital number, since it uses as much as digits as its factorization.

340313421389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 186624, while the sum is 41.

The spelling of 340313421389 in words is "three hundred forty billion, three hundred thirteen million, four hundred twenty-one thousand, three hundred eighty-nine".