20424340133023 has 2 divisors, whose sum is σ = 20424340133024. Its totient is φ = 20424340133022.

The previous prime is 20424340132981. The next prime is 20424340133101. The reversal of 20424340133023 is 32033104342402.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20424340133023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20424340133123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10212170066511 + 10212170066512.

It is an arithmetic number, because the mean of its divisors is an integer number (10212170066512).

Almost surely, 2^{20424340133023} is an apocalyptic number.

20424340133023 is a deficient number, since it is larger than the sum of its proper divisors (1).

20424340133023 is an equidigital number, since it uses as much as digits as its factorization.

20424340133023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 31.

Adding to 20424340133023 its reverse (32033104342402), we get a palindrome (52457444475425).

The spelling of 20424340133023 in words is "twenty trillion, four hundred twenty-four billion, three hundred forty million, one hundred thirty-three thousand, twenty-three".