23031143305 has 8 divisors (see below), whose sum is σ = 27668676672. Its totient is φ = 18404044848.

The previous prime is 23031143209. The next prime is 23031143309. The reversal of 23031143305 is 50334113032.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23031143305 - 2⁹ = 23031142793 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23031143305.

It is not an unprimeable number, because it can be changed into a prime (23031143309) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2603869 + ... + 2612698.

It is an arithmetic number, because the mean of its divisors is an integer number (3458584584).

Almost surely, 2^23031143305 is an apocalyptic number.

It is an amenable number.

23031143305 is a deficient number, since it is larger than the sum of its proper divisors (4637533367).

23031143305 is an equidigital number, since it uses as much as digits as its factorization.

23031143305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5217455.

The product of its (nonzero) digits is 3240, while the sum is 25.

Adding to 23031143305 its reverse (50334113032), we get a palindrome (73365256337).

The spelling of 23031143305 in words is "twenty-three billion, thirty-one million, one hundred forty-three thousand, three hundred five".