20340223459 has 2 divisors, whose sum is σ = 20340223460. Its totient is φ = 20340223458.

The previous prime is 20340223441. The next prime is 20340223469. The reversal of 20340223459 is 95432204302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20340223459 - 2¹⁷ = 20340092387 is a prime.

It is not a weakly prime, because it can be changed into another prime (20340223469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10170111729 + 10170111730.

It is an arithmetic number, because the mean of its divisors is an integer number (10170111730).

Almost surely, 2^20340223459 is an apocalyptic number.

20340223459 is a deficient number, since it is larger than the sum of its proper divisors (1).

20340223459 is an equidigital number, since it uses as much as digits as its factorization.

20340223459 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 34.

The spelling of 20340223459 in words is "twenty billion, three hundred forty million, two hundred twenty-three thousand, four hundred fifty-nine".