1231424304 has 80 divisors (see below), whose sum is σ = 3478229760. Its totient is φ = 372314880.

The previous prime is 1231424297. The next prime is 1231424309. The reversal of 1231424304 is 4034241321.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (1231424309) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 254742 + ... + 259530.

It is an arithmetic number, because the mean of its divisors is an integer number (43477872).

Almost surely, 2^1231424304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1231424304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1739114880).

1231424304 is an abundant number, since it is smaller than the sum of its proper divisors (2246805456).

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

1231424304 is a wasteful number, since it uses less digits than its factorization.

1231424304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5298 (or 5292 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 1231424304 is about 35091.6557603086. The cubic root of 1231424304 is about 1071.8546760380.

Adding to 1231424304 its reverse (4034241321), we get a palindrome (5265665625).

The spelling of 1231424304 in words is "one billion, two hundred thirty-one million, four hundred twenty-four thousand, three hundred four".