1231433224 has 16 divisors (see below), whose sum is σ = 2638785600. Its totient is φ = 527757072.

The previous prime is 1231433221. The next prime is 1231433303. The reversal of 1231433224 is 4223341321.

It is not an unprimeable number, because it can be changed into a prime (1231433221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10994884 + ... + 10994995.

It is an arithmetic number, because the mean of its divisors is an integer number (164924100).

Almost surely, 2^1231433224 is an apocalyptic number.

1231433224 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1231433224 is an abundant number, since it is smaller than the sum of its proper divisors (1407352376).

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

1231433224 is a wasteful number, since it uses less digits than its factorization.

1231433224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21989892 (or 21989888 counting only the distinct ones).

The product of its digits is 3456, while the sum is 25.

The square root of 1231433224 is about 35091.7828558197. The cubic root of 1231433224 is about 1071.8572640765.

Adding to 1231433224 its reverse (4223341321), we get a palindrome (5454774545).

The spelling of 1231433224 in words is "one billion, two hundred thirty-one million, four hundred thirty-three thousand, two hundred twenty-four".