23123231444 has 12 divisors (see below), whose sum is σ = 40528788468. Its totient is φ = 11543577600.

The previous prime is 23123231441. The next prime is 23123231489. The reversal of 23123231444 is 44413232132.

It can be written as a sum of positive squares in 2 ways, for example, as 17059494544 + 6063736900 = 130612^2 + 77870^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23123231441) 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, 4506647 + ... + 4511774.

It is an arithmetic number, because the mean of its divisors is an integer number (3377399039).

Almost surely, 2^23123231444 is an apocalyptic number.

It is an amenable number.

23123231444 is a deficient number, since it is larger than the sum of its proper divisors (17405557024).

23123231444 is a wasteful number, since it uses less digits than its factorization.

23123231444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9019066 (or 9019064 counting only the distinct ones).

The product of its digits is 13824, while the sum is 29.

Adding to 23123231444 its reverse (44413232132), we get a palindrome (67536463576).

The spelling of 23123231444 in words is "twenty-three billion, one hundred twenty-three million, two hundred thirty-one thousand, four hundred forty-four".