40323434420123 has 2 divisors, whose sum is σ = 40323434420124. Its totient is φ = 40323434420122.

The previous prime is 40323434420089. The next prime is 40323434420141. The reversal of 40323434420123 is 32102443432304.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40323434420123 is a prime.

It is not a weakly prime, because it can be changed into another prime (40323434425123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20161717210061 + 20161717210062.

It is an arithmetic number, because the mean of its divisors is an integer number (20161717210062).

Almost surely, 2^{40323434420123} is an apocalyptic number.

40323434420123 is a deficient number, since it is larger than the sum of its proper divisors (1).

40323434420123 is an equidigital number, since it uses as much as digits as its factorization.

40323434420123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 165888, while the sum is 35.

Adding to 40323434420123 its reverse (32102443432304), we get a palindrome (72425877852427).

The spelling of 40323434420123 in words is "forty trillion, three hundred twenty-three billion, four hundred thirty-four million, four hundred twenty thousand, one hundred twenty-three".