1232231312 has 20 divisors (see below), whose sum is σ = 2571098460. Its totient is φ = 568722048.

The previous prime is 1232231311. The next prime is 1232231321. The reversal of 1232231312 is 2131322321.

It can be written as a sum of positive squares in 2 ways, for example, as 127599616 + 1104631696 = 11296^2 + 33236^2 .

It is not an unprimeable number, because it can be changed into a prime (1232231311) 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, 2961887 + ... + 2962302.

It is an arithmetic number, because the mean of its divisors is an integer number (128554923).

Almost surely, 2^1232231312 is an apocalyptic number.

It is an amenable number.

1232231312 is an abundant number, since it is smaller than the sum of its proper divisors (1338867148).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1232231312 is a wasteful number, since it uses less digits than its factorization.

1232231312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5924210 (or 5924204 counting only the distinct ones).

The product of its digits is 432, while the sum is 20.

The square root of 1232231312 is about 35103.1524510264. The cubic root of 1232231312 is about 1072.0887698451.

Adding to 1232231312 its reverse (2131322321), we get a palindrome (3363553633).

It can be divided in two parts, 12322 and 31312, that added together give a palindrome (43634).

The spelling of 1232231312 in words is "one billion, two hundred thirty-two million, two hundred thirty-one thousand, three hundred twelve".