1331233432 has 16 divisors (see below), whose sum is σ = 2521796760. Its totient is φ = 658754304.

The previous prime is 1331233427. The next prime is 1331233481. The reversal of 1331233432 is 2343321331.

It is a junction number, because it is equal to n+sod(n) for n = 1331233397 and 1331233406.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 856978 + ... + 858529.

Almost surely, 2^1331233432 is an apocalyptic number.

It is an amenable number.

1331233432 is a deficient number, since it is larger than the sum of its proper divisors (1190563328).

1331233432 is a wasteful number, since it uses less digits than its factorization.

1331233432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1715610 (or 1715606 counting only the distinct ones).

The product of its digits is 3888, while the sum is 25.

The square root of 1331233432 is about 36486.0717534788. The cubic root of 1331233432 is about 1100.0643025771.

Adding to 1331233432 its reverse (2343321331), we get a palindrome (3674554763).

The spelling of 1331233432 in words is "one billion, three hundred thirty-one million, two hundred thirty-three thousand, four hundred thirty-two".