340325110040521 has 2 divisors, whose sum is σ = 340325110040522. Its totient is φ = 340325110040520.

The previous prime is 340325110040479. The next prime is 340325110040537. The reversal of 340325110040521 is 125040011523043.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 172437736718025 + 167887373322496 = 13131555^2 + 12957136^2 .

It is a cyclic number.

It is not a de Polignac number, because 340325110040521 - 2¹⁹ = 340325109516233 is a prime.

It is not a weakly prime, because it can be changed into another prime (340325110040021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170162555020260 + 170162555020261.

It is an arithmetic number, because the mean of its divisors is an integer number (170162555020261).

Almost surely, 2^{340325110040521} is an apocalyptic number.

It is an amenable number.

340325110040521 is a deficient number, since it is larger than the sum of its proper divisors (1).

340325110040521 is an equidigital number, since it uses as much as digits as its factorization.

340325110040521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 340325110040521 its reverse (125040011523043), we get a palindrome (465365121563564).

The spelling of 340325110040521 in words is "three hundred forty trillion, three hundred twenty-five billion, one hundred ten million, forty thousand, five hundred twenty-one".