340231143931321 has 2 divisors, whose sum is σ = 340231143931322. Its totient is φ = 340231143931320.

The previous prime is 340231143931291. The next prime is 340231143931351. The reversal of 340231143931321 is 123139341132043.

It is a balanced prime because it is at equal distance from previous prime (340231143931291) and next prime (340231143931351).

It can be written as a sum of positive squares in only one way, i.e., 312193737690025 + 28037406241296 = 17669005^2 + 5295036^2 .

It is a cyclic number.

It is not a de Polignac number, because 340231143931321 - 2³¹ = 340228996447673 is a prime.

It is not a weakly prime, because it can be changed into another prime (340231143931351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170115571965660 + 170115571965661.

It is an arithmetic number, because the mean of its divisors is an integer number (170115571965661).

Almost surely, 2^{340231143931321} is an apocalyptic number.

It is an amenable number.

340231143931321 is a deficient number, since it is larger than the sum of its proper divisors (1).

340231143931321 is an equidigital number, since it uses as much as digits as its factorization.

340231143931321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 139968, while the sum is 40.

The spelling of 340231143931321 in words is "three hundred forty trillion, two hundred thirty-one billion, one hundred forty-three million, nine hundred thirty-one thousand, three hundred twenty-one".