1311430044 has 12 divisors (see below), whose sum is σ = 3060003464. Its totient is φ = 437143344.

The previous prime is 1311429937. The next prime is 1311430069. The reversal of 1311430044 is 4400341131.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 1311430044.

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, 54642907 + ... + 54642930.

Almost surely, 2^1311430044 is an apocalyptic number.

It is an amenable number.

1311430044 is an abundant number, since it is smaller than the sum of its proper divisors (1748573420).

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

1311430044 is a wasteful number, since it uses less digits than its factorization.

1311430044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109285844 (or 109285842 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1311430044 is about 36213.6720590442. The cubic root of 1311430044 is about 1094.5821870876.

Adding to 1311430044 its reverse (4400341131), we get a palindrome (5711771175).

The spelling of 1311430044 in words is "one billion, three hundred eleven million, four hundred thirty thousand, forty-four".