23420040323 has 4 divisors (see below), whose sum is σ = 23506461408. Its totient is φ = 23333619240.

The previous prime is 23420040299. The next prime is 23420040359. The reversal of 23420040323 is 32304002432.

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 23420040323 - 2³² = 19125073027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23420000323) 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 in 3 ways as a sum of consecutive naturals, for example, 43210136 + ... + 43210677.

It is an arithmetic number, because the mean of its divisors is an integer number (5876615352).

Almost surely, 2^23420040323 is an apocalyptic number.

23420040323 is a deficient number, since it is larger than the sum of its proper divisors (86421085).

23420040323 is an equidigital number, since it uses as much as digits as its factorization.

23420040323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86421084.

The product of its (nonzero) digits is 3456, while the sum is 23.

Adding to 23420040323 its reverse (32304002432), we get a palindrome (55724042755).

The spelling of 23420040323 in words is "twenty-three billion, four hundred twenty million, forty thousand, three hundred twenty-three".