23231142043 has 4 divisors (see below), whose sum is σ = 23233498288. Its totient is φ = 23228785800.

The previous prime is 23231142037. The next prime is 23231142083. The reversal of 23231142043 is 34024113232.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23231142043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23231141999 and 23231142017.

It is not an unprimeable number, because it can be changed into a prime (23231142023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1163271 + ... + 1183072.

It is an arithmetic number, because the mean of its divisors is an integer number (5808374572).

Almost surely, 2^23231142043 is an apocalyptic number.

23231142043 is a deficient number, since it is larger than the sum of its proper divisors (2356245).

23231142043 is an equidigital number, since it uses as much as digits as its factorization.

23231142043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2356244.

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

Adding to 23231142043 its reverse (34024113232), we get a palindrome (57255255275).

The spelling of 23231142043 in words is "twenty-three billion, two hundred thirty-one million, one hundred forty-two thousand, forty-three".