340013230013021 has 2 divisors, whose sum is σ = 340013230013022. Its totient is φ = 340013230013020.

The previous prime is 340013230013011. The next prime is 340013230013027. The reversal of 340013230013021 is 120310032310043.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 310901917672921 + 29111312340100 = 17632411^2 + 5395490^2 .

It is a cyclic number.

It is not a de Polignac number, because 340013230013021 - 2³⁴ = 339996050143837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340013230013027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170006615006510 + 170006615006511.

It is an arithmetic number, because the mean of its divisors is an integer number (170006615006511).

Almost surely, 2^{340013230013021} is an apocalyptic number.

It is an amenable number.

340013230013021 is a deficient number, since it is larger than the sum of its proper divisors (1).

340013230013021 is an equidigital number, since it uses as much as digits as its factorization.

340013230013021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 340013230013021 its reverse (120310032310043), we get a palindrome (460323262323064).

The spelling of 340013230013021 in words is "three hundred forty trillion, thirteen billion, two hundred thirty million, thirteen thousand, twenty-one".