1113123121303 has 16 divisors (see below), whose sum is σ = 1224113464800. Its totient is φ = 1008093340800.

The previous prime is 1113123121301. The next prime is 1113123121309. The reversal of 1113123121303 is 3031213213111.

It is a cyclic number.

It is not a de Polignac number, because 1113123121303 - 2¹ = 1113123121301 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 (1113123121301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9945276 + ... + 10056577.

It is an arithmetic number, because the mean of its divisors is an integer number (76507091550).

Almost surely, 2^{1113123121303} is an apocalyptic number.

1113123121303 is a deficient number, since it is larger than the sum of its proper divisors (110990343497).

1113123121303 is a wasteful number, since it uses less digits than its factorization.

1113123121303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20002002.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 1113123121303 its reverse (3031213213111), we get a palindrome (4144336334414).

The spelling of 1113123121303 in words is "one trillion, one hundred thirteen billion, one hundred twenty-three million, one hundred twenty-one thousand, three hundred three".