1011342043444 has 24 divisors (see below), whose sum is σ = 1819199881800. Its totient is φ = 491739515904.

The previous prime is 1011342043441. The next prime is 1011342043447. The reversal of 1011342043444 is 4443402431101.

It is an interprime number because it is at equal distance from previous prime (1011342043441) and next prime (1011342043447).

It can be written as a sum of positive squares in 4 ways, for example, as 264413980944 + 746928062500 = 514212^2 + 864250^2 .

It is a super-2 number, since 2×1011342043444² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011342043441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21084369 + ... + 21132280.

It is an arithmetic number, because the mean of its divisors is an integer number (75799995075).

Almost surely, 2^{1011342043444} is an apocalyptic number.

It is an amenable number.

1011342043444 is a deficient number, since it is larger than the sum of its proper divisors (807857838356).

1011342043444 is a wasteful number, since it uses less digits than its factorization.

1011342043444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42216819 (or 42216817 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 1011342043444 its reverse (4443402431101), we get a palindrome (5454744474545).

The spelling of 1011342043444 in words is "one trillion, eleven billion, three hundred forty-two million, forty-three thousand, four hundred forty-four".