1331234412 has 24 divisors (see below), whose sum is σ = 3181976112. Its totient is φ = 432921600.

The previous prime is 1331234381. The next prime is 1331234543. The reversal of 1331234412 is 2144321331.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

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, 1352389 + ... + 1353372.

It is an arithmetic number, because the mean of its divisors is an integer number (132582338).

Almost surely, 2^1331234412 is an apocalyptic number.

1331234412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1331234412 is an abundant number, since it is smaller than the sum of its proper divisors (1850741700).

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

1331234412 is a wasteful number, since it uses less digits than its factorization.

1331234412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2705809 (or 2705807 counting only the distinct ones).

The product of its digits is 1728, while the sum is 24.

The square root of 1331234412 is about 36486.0851832586. The cubic root of 1331234412 is about 1100.0645725179.

Adding to 1331234412 its reverse (2144321331), we get a palindrome (3475555743).

The spelling of 1331234412 in words is "one billion, three hundred thirty-one million, two hundred thirty-four thousand, four hundred twelve".