340240002321013 has 4 divisors (see below), whose sum is σ = 360254120104620. Its totient is φ = 320225884537408.

The previous prime is 340240002321001. The next prime is 340240002321029. The reversal of 340240002321013 is 310123200042043.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 131103805303249 + 209136197017764 = 11450057^2 + 14461542^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-340240002321013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340240002321053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10007058891778 + ... + 10007058891811.

It is an arithmetic number, because the mean of its divisors is an integer number (90063530026155).

Almost surely, 2^{340240002321013} is an apocalyptic number.

It is an amenable number.

340240002321013 is a deficient number, since it is larger than the sum of its proper divisors (20014117783607).

340240002321013 is a wasteful number, since it uses less digits than its factorization.

340240002321013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20014117783606.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 340240002321013 its reverse (310123200042043), we get a palindrome (650363202363056).

The spelling of 340240002321013 in words is "three hundred forty trillion, two hundred forty billion, two million, three hundred twenty-one thousand, thirteen".