1123113213013 has 4 divisors (see below), whose sum is σ = 1225214414208. Its totient is φ = 1021012011820.

The previous prime is 1123113212993. The next prime is 1123113213017. The reversal of 1123113213013 is 3103123113211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1123113213013 - 2⁵ = 1123113212981 is a prime.

It is a super-2 number, since 2×1123113213013² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123113213017) 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, 51050600581 + ... + 51050600602.

It is an arithmetic number, because the mean of its divisors is an integer number (306303603552).

Almost surely, 2^{1123113213013} is an apocalyptic number.

It is an amenable number.

1123113213013 is a deficient number, since it is larger than the sum of its proper divisors (102101201195).

1123113213013 is a wasteful number, since it uses less digits than its factorization.

1123113213013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102101201194.

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

Adding to 1123113213013 its reverse (3103123113211), we get a palindrome (4226236326224).

The spelling of 1123113213013 in words is "one trillion, one hundred twenty-three billion, one hundred thirteen million, two hundred thirteen thousand, thirteen".