1231224032 has 48 divisors (see below), whose sum is σ = 2487324672. Its totient is φ = 599648640.

The previous prime is 1231224023. The next prime is 1231224041. The reversal of 1231224032 is 2304221321.

It is an interprime number because it is at equal distance from previous prime (1231224023) and next prime (1231224041).

It is a junction number, because it is equal to n+sod(n) for n = 1231223995 and 1231224013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 333557 + ... + 337227.

It is an arithmetic number, because the mean of its divisors is an integer number (51819264).

Almost surely, 2^1231224032 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 1231224032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1243662336).

1231224032 is an abundant number, since it is smaller than the sum of its proper divisors (1256100640).

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

1231224032 is a wasteful number, since it uses less digits than its factorization.

1231224032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3951 (or 3943 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1231224032 is about 35088.8020884156. The cubic root of 1231224032 is about 1071.7965660599.

Adding to 1231224032 its reverse (2304221321), we get a palindrome (3535445353).

The spelling of 1231224032 in words is "one billion, two hundred thirty-one million, two hundred twenty-four thousand, thirty-two".