1331224132 has 24 divisors (see below), whose sum is σ = 2802578240. Its totient is φ = 540496800.

The previous prime is 1331224019. The next prime is 1331224159. The reversal of 1331224132 is 2314221331.

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, 1250619 + ... + 1251682.

Almost surely, 2^1331224132 is an apocalyptic number.

It is an amenable number.

1331224132 is an abundant number, since it is smaller than the sum of its proper divisors (1471354108).

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

1331224132 is a wasteful number, since it uses less digits than its factorization.

1331224132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2502331 (or 2502329 counting only the distinct ones).

The product of its digits is 864, while the sum is 22.

The square root of 1331224132 is about 36485.9443073631. The cubic root of 1331224132 is about 1100.0617408872.

Adding to 1331224132 its reverse (2314221331), we get a palindrome (3645445463).

The spelling of 1331224132 in words is "one billion, three hundred thirty-one million, two hundred twenty-four thousand, one hundred thirty-two".