1121003344305 has 48 divisors (see below), whose sum is σ = 2126843571216. Its totient is φ = 542831362560.

The previous prime is 1121003344301. The next prime is 1121003344367. The reversal of 1121003344305 is 5034433001211.

It is a happy number.

1121003344305 is a `hidden beast` number, since 1 + 1 + 2 + 10 + 0 + 3 + 344 + 305 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 642432707361 + 478570636944 = 801519^2 + 691788^2 .

It is not a de Polignac number, because 1121003344305 - 2² = 1121003344301 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1121003344301) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15671242 + ... + 15742611.

It is an arithmetic number, because the mean of its divisors is an integer number (44309241067).

Almost surely, 2^{1121003344305} is an apocalyptic number.

1121003344305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1121003344305 is a deficient number, since it is larger than the sum of its proper divisors (1005840226911).

1121003344305 is a wasteful number, since it uses less digits than its factorization.

1121003344305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31413938 (or 31413935 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 1121003344305 its reverse (5034433001211), we get a palindrome (6155436345516).

The spelling of 1121003344305 in words is "one trillion, one hundred twenty-one billion, three million, three hundred forty-four thousand, three hundred five".