1232120444 has 12 divisors (see below), whose sum is σ = 2156776944. Its totient is φ = 615898464.

The previous prime is 1232120443. The next prime is 1232120447. The reversal of 1232120444 is 4440212321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232120443) 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, 22409 + ... + 54464.

It is an arithmetic number, because the mean of its divisors is an integer number (179731412).

Almost surely, 2^1232120444 is an apocalyptic number.

It is an amenable number.

1232120444 is a deficient number, since it is larger than the sum of its proper divisors (924656500).

1232120444 is a wasteful number, since it uses less digits than its factorization.

1232120444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80884 (or 80882 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 1232120444 is about 35101.5732410956. The cubic root of 1232120444 is about 1072.0566157353.

Adding to 1232120444 its reverse (4440212321), we get a palindrome (5672332765).

The spelling of 1232120444 in words is "one billion, two hundred thirty-two million, one hundred twenty thousand, four hundred forty-four".