23123142043 has 4 divisors (see below), whose sum is σ = 23158553328. Its totient is φ = 23087730760.

The previous prime is 23123142011. The next prime is 23123142073. The reversal of 23123142043 is 34024132132.

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 23123142043 - 2⁵ = 23123142011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23123141999 and 23123142017.

It is not an unprimeable number, because it can be changed into a prime (23123142073) 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, 17704663 + ... + 17705968.

It is an arithmetic number, because the mean of its divisors is an integer number (5789638332).

Almost surely, 2^23123142043 is an apocalyptic number.

23123142043 is a deficient number, since it is larger than the sum of its proper divisors (35411285).

23123142043 is an equidigital number, since it uses as much as digits as its factorization.

23123142043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35411284.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 23123142043 its reverse (34024132132), we get a palindrome (57147274175).

The spelling of 23123142043 in words is "twenty-three billion, one hundred twenty-three million, one hundred forty-two thousand, forty-three".