1111431323344 has 20 divisors (see below), whose sum is σ = 2155150381860. Its totient is φ = 555263482880.

The previous prime is 1111431323309. The next prime is 1111431323347. The reversal of 1111431323344 is 4433231341111.

It can be written as a sum of positive squares in 2 ways, for example, as 905961312400 + 205470010944 = 951820^2 + 453288^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111431323347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28240897 + ... + 28280224.

It is an arithmetic number, because the mean of its divisors is an integer number (107757519093).

Almost surely, 2^{1111431323344} is an apocalyptic number.

It is an amenable number.

1111431323344 is a deficient number, since it is larger than the sum of its proper divisors (1043719058516).

1111431323344 is a wasteful number, since it uses less digits than its factorization.

1111431323344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56522358 (or 56522352 counting only the distinct ones).

The product of its digits is 10368, while the sum is 31.

Adding to 1111431323344 its reverse (4433231341111), we get a palindrome (5544662664455).

The spelling of 1111431323344 in words is "one trillion, one hundred eleven billion, four hundred thirty-one million, three hundred twenty-three thousand, three hundred forty-four".