1232401312 has 12 divisors (see below), whose sum is σ = 2426290146. Its totient is φ = 616200640.

The previous prime is 1232401309. The next prime is 1232401319. The reversal of 1232401312 is 2131042321.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1089264016 + 143137296 = 33004^2 + 11964^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1232401312.

It is not an unprimeable number, because it can be changed into a prime (1232401319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19256239 + ... + 19256302.

Almost surely, 2^1232401312 is an apocalyptic number.

It is an amenable number.

1232401312 is a deficient number, since it is larger than the sum of its proper divisors (1193888834).

1232401312 is an equidigital number, since it uses as much as digits as its factorization.

1232401312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38512551 (or 38512543 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1232401312 is about 35105.5738024605. The cubic root of 1232401312 is about 1072.1380697637.

Adding to 1232401312 its reverse (2131042321), we get a palindrome (3363443633).

The spelling of 1232401312 in words is "one billion, two hundred thirty-two million, four hundred one thousand, three hundred twelve".