12123231044 has 6 divisors (see below), whose sum is σ = 21215654334. Its totient is φ = 6061615520.

The previous prime is 12123231017. The next prime is 12123231047. The reversal of 12123231044 is 44013232121.

It can be written as a sum of positive squares in only one way, i.e., 10054072900 + 2069158144 = 100270^2 + 45488^2 .

It is not an unprimeable number, because it can be changed into a prime (12123231047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1515403877 + ... + 1515403884.

It is an arithmetic number, because the mean of its divisors is an integer number (3535942389).

Almost surely, 2^12123231044 is an apocalyptic number.

It is an amenable number.

12123231044 is a deficient number, since it is larger than the sum of its proper divisors (9092423290).

12123231044 is a wasteful number, since it uses less digits than its factorization.

12123231044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3030807765 (or 3030807763 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 12123231044 its reverse (44013232121), we get a palindrome (56136463165).

The spelling of 12123231044 in words is "twelve billion, one hundred twenty-three million, two hundred thirty-one thousand, forty-four".