23400140243 has 2 divisors, whose sum is σ = 23400140244. Its totient is φ = 23400140242.

The previous prime is 23400140237. The next prime is 23400140317. The reversal of 23400140243 is 34204100432.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23400140243 - 2¹⁰ = 23400139219 is a prime.

It is not a weakly prime, because it can be changed into another prime (23400140143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11700070121 + 11700070122.

It is an arithmetic number, because the mean of its divisors is an integer number (11700070122).

Almost surely, 2^23400140243 is an apocalyptic number.

23400140243 is a deficient number, since it is larger than the sum of its proper divisors (1).

23400140243 is an equidigital number, since it uses as much as digits as its factorization.

23400140243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 23400140243 its reverse (34204100432), we get a palindrome (57604240675).

The spelling of 23400140243 in words is "twenty-three billion, four hundred million, one hundred forty thousand, two hundred forty-three".