1311444412 has 12 divisors (see below), whose sum is σ = 2296465360. Its totient is φ = 655311456.

The previous prime is 1311444397. The next prime is 1311444437. The reversal of 1311444412 is 2144441131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95448 + ... + 108319.

Almost surely, 2^1311444412 is an apocalyptic number.

It is an amenable number.

1311444412 is a deficient number, since it is larger than the sum of its proper divisors (985020948).

1311444412 is a wasteful number, since it uses less digits than its factorization.

1311444412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205380 (or 205378 counting only the distinct ones).

The product of its digits is 1536, while the sum is 25.

The square root of 1311444412 is about 36213.8704366159. The cubic root of 1311444412 is about 1094.5861844795.

Adding to 1311444412 its reverse (2144441131), we get a palindrome (3455885543).

The spelling of 1311444412 in words is "one billion, three hundred eleven million, four hundred forty-four thousand, four hundred twelve".