340320313999 has 4 divisors (see below), whose sum is σ = 341218257160. Its totient is φ = 339422370840.

The previous prime is 340320313961. The next prime is 340320314003. The reversal of 340320313999 is 999313023043.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 999313023043 = 1801 ⋅554865643.

It is a cyclic number.

It is not a de Polignac number, because 340320313999 - 2¹¹ = 340320311951 is a prime.

It is a super-2 number, since 2×340320313999² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340320313919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 448971012 + ... + 448971769.

It is an arithmetic number, because the mean of its divisors is an integer number (85304564290).

Almost surely, 2^340320313999 is an apocalyptic number.

340320313999 is a deficient number, since it is larger than the sum of its proper divisors (897943161).

340320313999 is an equidigital number, since it uses as much as digits as its factorization.

340320313999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 897943160.

The product of its (nonzero) digits is 472392, while the sum is 46.

The spelling of 340320313999 in words is "three hundred forty billion, three hundred twenty million, three hundred thirteen thousand, nine hundred ninety-nine".