1123103131144 has 32 divisors (see below), whose sum is σ = 2117107795320. Its totient is φ = 558542094336.

The previous prime is 1123103131121. The next prime is 1123103131211. The reversal of 1123103131144 is 4411313013211.

It can be written as a sum of positive squares in 4 ways, for example, as 1113788951044 + 9314180100 = 1055362^2 + 96510^2 .

It is a super-2 number, since 2×1123103131144² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 8981112 + ... + 9105304.

Almost surely, 2^{1123103131144} is an apocalyptic number.

It is an amenable number.

1123103131144 is a deficient number, since it is larger than the sum of its proper divisors (994004664176).

1123103131144 is a wasteful number, since it uses less digits than its factorization.

1123103131144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130249 (or 130245 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 1123103131144 its reverse (4411313013211), we get a palindrome (5534416144355).

The spelling of 1123103131144 in words is "one trillion, one hundred twenty-three billion, one hundred three million, one hundred thirty-one thousand, one hundred forty-four".