1230311232 has 42 divisors (see below), whose sum is σ = 3526466658. Its totient is φ = 410103552.

The previous prime is 1230311219. The next prime is 1230311263. The reversal of 1230311232 is 2321130321.

1230311232 is a `hidden beast` number, since 123 + 0 + 311 + 232 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1119303936 + 111007296 = 33456^2 + 10536^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1067403 + ... + 1068554.

Almost surely, 2^1230311232 is an apocalyptic number.

1230311232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1230311232 is an abundant number, since it is smaller than the sum of its proper divisors (2296155426).

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

1230311232 is a wasteful number, since it uses less digits than its factorization.

1230311232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2135975 (or 2135962 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1230311232 is about 35075.7926781420. The cubic root of 1230311232 is about 1071.5316324786.

Adding to 1230311232 its reverse (2321130321), we get a palindrome (3551441553).

The spelling of 1230311232 in words is "one billion, two hundred thirty million, three hundred eleven thousand, two hundred thirty-two".