1231330304 has 22 divisors (see below), whose sum is σ = 2461460184. Its totient is φ = 615664640.

The previous prime is 1231330301. The next prime is 1231330307. The reversal of 1231330304 is 4030331321.

It is an interprime number because it is at equal distance from previous prime (1231330301) and next prime (1231330307).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231330301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600212 + ... + 602259.

Almost surely, 2^1231330304 is an apocalyptic number.

It is an amenable number.

1231330304 is a deficient number, since it is larger than the sum of its proper divisors (1230129880).

1231330304 is an equidigital number, since it uses as much as digits as its factorization.

1231330304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1202491 (or 1202473 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 1231330304 is about 35090.3163850086. The cubic root of 1231330304 is about 1071.8274022264.

Adding to 1231330304 its reverse (4030331321), we get a palindrome (5261661625).

The spelling of 1231330304 in words is "one billion, two hundred thirty-one million, three hundred thirty thousand, three hundred four".