1311101444 has 12 divisors (see below), whose sum is σ = 2350389468. Its totient is φ = 639561600.

The previous prime is 1311101419. The next prime is 1311101497. The reversal of 1311101444 is 4441011131.

It can be written as a sum of positive squares in 2 ways, for example, as 504541444 + 806560000 = 22462^2 + 28400^2 .

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, 3997097 + ... + 3997424.

It is an arithmetic number, because the mean of its divisors is an integer number (195865789).

Almost surely, 2^1311101444 is an apocalyptic number.

It is an amenable number.

1311101444 is a deficient number, since it is larger than the sum of its proper divisors (1039288024).

1311101444 is a wasteful number, since it uses less digits than its factorization.

1311101444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7994566 (or 7994564 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 1311101444 is about 36209.1348142979. The cubic root of 1311101444 is about 1094.4907576963.

Adding to 1311101444 its reverse (4441011131), we get a palindrome (5752112575).

The spelling of 1311101444 in words is "one billion, three hundred eleven million, one hundred one thousand, four hundred forty-four".