1121312123303 has 4 divisors (see below), whose sum is σ = 1121395748088. Its totient is φ = 1121228498520.

The previous prime is 1121312123293. The next prime is 1121312123311. The reversal of 1121312123303 is 3033212131211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1121312123303 - 2⁴⁰ = 21800495527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121312120303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41792276 + ... + 41819097.

It is an arithmetic number, because the mean of its divisors is an integer number (280348937022).

Almost surely, 2^{1121312123303} is an apocalyptic number.

1121312123303 is a deficient number, since it is larger than the sum of its proper divisors (83624785).

1121312123303 is an equidigital number, since it uses as much as digits as its factorization.

1121312123303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83624784.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 1121312123303 its reverse (3033212131211), we get a palindrome (4154524254514).

The spelling of 1121312123303 in words is "one trillion, one hundred twenty-one billion, three hundred twelve million, one hundred twenty-three thousand, three hundred three".