23440205351 has 2 divisors, whose sum is σ = 23440205352. Its totient is φ = 23440205350.

The previous prime is 23440205333. The next prime is 23440205401. The reversal of 23440205351 is 15350204432.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23440205351 - 2⁶ = 23440205287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23440205051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11720102675 + 11720102676.

It is an arithmetic number, because the mean of its divisors is an integer number (11720102676).

Almost surely, 2^23440205351 is an apocalyptic number.

23440205351 is a deficient number, since it is larger than the sum of its proper divisors (1).

23440205351 is an equidigital number, since it uses as much as digits as its factorization.

23440205351 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 23440205351 its reverse (15350204432), we get a palindrome (38790409783).

The spelling of 23440205351 in words is "twenty-three billion, four hundred forty million, two hundred five thousand, three hundred fifty-one".