1113213123123 has 16 divisors (see below), whose sum is σ = 1512377532576. Its totient is φ = 728097027840.

The previous prime is 1113213123089. The next prime is 1113213123173. The reversal of 1113213123123 is 3213213123111.

It is not a de Polignac number, because 1113213123123 - 2⁸ = 1113213122867 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1113213123093 and 1113213123102.

It is not an unprimeable number, because it can be changed into a prime (1113213123173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2663613 + ... + 3053073.

It is an arithmetic number, because the mean of its divisors is an integer number (94523595786).

Almost surely, 2^{1113213123123} is an apocalyptic number.

1113213123123 is a deficient number, since it is larger than the sum of its proper divisors (399164409453).

1113213123123 is a wasteful number, since it uses less digits than its factorization.

1113213123123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407494.

The product of its digits is 648, while the sum is 24.

Adding to 1113213123123 its reverse (3213213123111), we get a palindrome (4326426246234).

The spelling of 1113213123123 in words is "one trillion, one hundred thirteen billion, two hundred thirteen million, one hundred twenty-three thousand, one hundred twenty-three".