340430113030321 has 2 divisors, whose sum is σ = 340430113030322. Its totient is φ = 340430113030320.

The previous prime is 340430113030283. The next prime is 340430113030351. The reversal of 340430113030321 is 123030311034043.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 227433213030321 + 112996900000000 = 15080889^2 + 10630000^2 .

It is a cyclic number.

It is not a de Polignac number, because 340430113030321 - 2¹⁵ = 340430112997553 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 340430113030321.

It is not a weakly prime, because it can be changed into another prime (340430113030351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170215056515160 + 170215056515161.

It is an arithmetic number, because the mean of its divisors is an integer number (170215056515161).

Almost surely, 2^{340430113030321} is an apocalyptic number.

It is an amenable number.

340430113030321 is a deficient number, since it is larger than the sum of its proper divisors (1).

340430113030321 is an equidigital number, since it uses as much as digits as its factorization.

340430113030321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 340430113030321 its reverse (123030311034043), we get a palindrome (463460424064364).

The spelling of 340430113030321 in words is "three hundred forty trillion, four hundred thirty billion, one hundred thirteen million, thirty thousand, three hundred twenty-one".