1113205043123 has 2 divisors, whose sum is σ = 1113205043124. Its totient is φ = 1113205043122.

The previous prime is 1113205043117. The next prime is 1113205043143. The reversal of 1113205043123 is 3213405023111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1113205043123 - 2¹⁶ = 1113204977587 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1113205043092 and 1113205043101.

It is not a weakly prime, because it can be changed into another prime (1113205043143) 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 as a sum of consecutive naturals, namely, 556602521561 + 556602521562.

It is an arithmetic number, because the mean of its divisors is an integer number (556602521562).

Almost surely, 2^{1113205043123} is an apocalyptic number.

1113205043123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1113205043123 is an equidigital number, since it uses as much as digits as its factorization.

1113205043123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 26.

The spelling of 1113205043123 in words is "one trillion, one hundred thirteen billion, two hundred five million, forty-three thousand, one hundred twenty-three".