1232431144 has 48 divisors (see below), whose sum is σ = 2720541600. Its totient is φ = 521807328.

The previous prime is 1232431087. The next prime is 1232431147. The reversal of 1232431144 is 4411342321.

It is a super-2 number, since 2×1232431144² = 3037773049402297472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1232431147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13597 + ... + 51475.

It is an arithmetic number, because the mean of its divisors is an integer number (56677950).

Almost surely, 2^1232431144 is an apocalyptic number.

1232431144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1232431144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1360270800).

1232431144 is an abundant number, since it is smaller than the sum of its proper divisors (1488110456).

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

1232431144 is a wasteful number, since it uses less digits than its factorization.

1232431144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37982 (or 37971 counting only the distinct ones).

The product of its digits is 2304, while the sum is 25.

The square root of 1232431144 is about 35105.9986896827. The cubic root of 1232431144 is about 1072.1467205618.

Adding to 1232431144 its reverse (4411342321), we get a palindrome (5643773465).

The spelling of 1232431144 in words is "one billion, two hundred thirty-two million, four hundred thirty-one thousand, one hundred forty-four".