340403304023 has 2 divisors, whose sum is σ = 340403304024. Its totient is φ = 340403304022.

The previous prime is 340403303993. The next prime is 340403304037. The reversal of 340403304023 is 320403304043.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 340403304023 - 2¹⁸ = 340403041879 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 340403303983 and 340403304001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340403304823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170201652011 + 170201652012.

It is an arithmetic number, because the mean of its divisors is an integer number (170201652012).

Almost surely, 2^340403304023 is an apocalyptic number.

340403304023 is a deficient number, since it is larger than the sum of its proper divisors (1).

340403304023 is an equidigital number, since it uses as much as digits as its factorization.

340403304023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 26.

Adding to 340403304023 its reverse (320403304043), we get a palindrome (660806608066).

The spelling of 340403304023 in words is "three hundred forty billion, four hundred three million, three hundred four thousand, twenty-three".