1121312313203 has 16 divisors (see below), whose sum is σ = 1191801997440. Its totient is φ = 1051977326400.

The previous prime is 1121312313197. The next prime is 1121312313257. The reversal of 1121312313203 is 3023132131211.

It is a cyclic number.

It is not a de Polignac number, because 1121312313203 - 2⁶ = 1121312313139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121312313503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5451143 + ... + 5653103.

It is an arithmetic number, because the mean of its divisors is an integer number (74487624840).

Almost surely, 2^{1121312313203} is an apocalyptic number.

1121312313203 is a deficient number, since it is larger than the sum of its proper divisors (70489684237).

1121312313203 is a wasteful number, since it uses less digits than its factorization.

1121312313203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204818.

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

Adding to 1121312313203 its reverse (3023132131211), we get a palindrome (4144444444414).

The spelling of 1121312313203 in words is "one trillion, one hundred twenty-one billion, three hundred twelve million, three hundred thirteen thousand, two hundred three".