1213325232 has 80 divisors (see below), whose sum is σ = 3591793920. Its totient is φ = 345735936.

The previous prime is 1213325231. The next prime is 1213325249. The reversal of 1213325232 is 2325233121.

It is a happy number.

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 (1213325231) 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, 126063 + ... + 135345.

It is an arithmetic number, because the mean of its divisors is an integer number (44897424).

Almost surely, 2^1213325232 is an apocalyptic number.

1213325232 is a gapful number since it is divisible by the number (12) 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 1213325232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1795896960).

1213325232 is an abundant number, since it is smaller than the sum of its proper divisors (2378468688).

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

1213325232 is a wasteful number, since it uses less digits than its factorization.

1213325232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9690 (or 9684 counting only the distinct ones).

The product of its digits is 2160, while the sum is 24.

The square root of 1213325232 is about 34832.8183183618. The cubic root of 1213325232 is about 1066.5774802167.

Adding to 1213325232 its reverse (2325233121), we get a palindrome (3538558353).

The spelling of 1213325232 in words is "one billion, two hundred thirteen million, three hundred twenty-five thousand, two hundred thirty-two".