23140403342423 has 4 divisors (see below), whose sum is σ = 23183176731768. Its totient is φ = 23097629953080.

The previous prime is 23140403342417. The next prime is 23140403342449. The reversal of 23140403342423 is 32424330404132.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23140403342423 - 2⁸ = 23140403342167 is a prime.

It is a super-3 number, since 3×23140403342423³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23140403347423) 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 in 3 ways as a sum of consecutive naturals, for example, 21386693861 + ... + 21386694942.

It is an arithmetic number, because the mean of its divisors is an integer number (5795794182942).

Almost surely, 2^{23140403342423} is an apocalyptic number.

23140403342423 is a deficient number, since it is larger than the sum of its proper divisors (42773389345).

23140403342423 is an equidigital number, since it uses as much as digits as its factorization.

23140403342423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42773389344.

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

Adding to 23140403342423 its reverse (32424330404132), we get a palindrome (55564733746555).

The spelling of 23140403342423 in words is "twenty-three trillion, one hundred forty billion, four hundred three million, three hundred forty-two thousand, four hundred twenty-three".