1331433412 has 24 divisors (see below), whose sum is σ = 2375755200. Its totient is φ = 652706016.

The previous prime is 1331433403. The next prime is 1331433449. The reversal of 1331433412 is 2143341331.

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, 84553 + ... + 99055.

It is an arithmetic number, because the mean of its divisors is an integer number (98989800).

Almost surely, 2^1331433412 is an apocalyptic number.

It is an amenable number.

1331433412 is a deficient number, since it is larger than the sum of its proper divisors (1044321788).

1331433412 is a wasteful number, since it uses less digits than its factorization.

1331433412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14955 (or 14953 counting only the distinct ones).

The product of its digits is 2592, while the sum is 25.

The square root of 1331433412 is about 36488.8121483832. The cubic root of 1331433412 is about 1100.1193842878.

Adding to 1331433412 its reverse (2143341331), we get a palindrome (3474774743).

The spelling of 1331433412 in words is "one billion, three hundred thirty-one million, four hundred thirty-three thousand, four hundred twelve".