1232311232 has 28 divisors (see below), whose sum is σ = 2589215040. Its totient is φ = 579910656.

The previous prime is 1232311231. The next prime is 1232311237. The reversal of 1232311232 is 2321132321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232311231) 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, 565232 + ... + 567407.

Almost surely, 2^1232311232 is an apocalyptic number.

It is an amenable number.

1232311232 is an abundant number, since it is smaller than the sum of its proper divisors (1356903808).

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

1232311232 is a wasteful number, since it uses less digits than its factorization.

1232311232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1132668 (or 1132658 counting only the distinct ones).

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

The square root of 1232311232 is about 35104.2907918676. The cubic root of 1232311232 is about 1072.1119471715. Note that the first 3 decimals are identical.

Adding to 1232311232 its reverse (2321132321), we get a palindrome (3553443553).

The spelling of 1232311232 in words is "one billion, two hundred thirty-two million, three hundred eleven thousand, two hundred thirty-two".