1311011103444 has 24 divisors (see below), whose sum is σ = 3496029609408. Its totient is φ = 374574600960.

The previous prime is 1311011103427. The next prime is 1311011103469. The reversal of 1311011103444 is 4443011101131.

It is a super-2 number, since 2×1311011103444² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

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, 7803637437 + ... + 7803637604.

It is an arithmetic number, because the mean of its divisors is an integer number (145667900392).

Almost surely, 2^{1311011103444} is an apocalyptic number.

1311011103444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1311011103444 is an abundant number, since it is smaller than the sum of its proper divisors (2185018505964).

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

1311011103444 is a wasteful number, since it uses less digits than its factorization.

1311011103444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15607275055 (or 15607275053 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

Adding to 1311011103444 its reverse (4443011101131), we get a palindrome (5754022204575).

The spelling of 1311011103444 in words is "one trillion, three hundred eleven billion, eleven million, one hundred three thousand, four hundred forty-four".