1123020330013 has 4 divisors (see below), whose sum is σ = 1123030529820. Its totient is φ = 1123010130208.

The previous prime is 1123020329957. The next prime is 1123020330031. The reversal of 1123020330013 is 3100330203211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 568452665764 + 554567664249 = 753958^2 + 744693^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1123020330013 is a prime.

It is a super-2 number, since 2×1123020330013² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123020330613) 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 3 ways as a sum of consecutive naturals, for example, 4932928 + ... + 5155561.

It is an arithmetic number, because the mean of its divisors is an integer number (280757632455).

Almost surely, 2^{1123020330013} is an apocalyptic number.

It is an amenable number.

1123020330013 is a deficient number, since it is larger than the sum of its proper divisors (10199807).

1123020330013 is a wasteful number, since it uses less digits than its factorization.

1123020330013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10199806.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 1123020330013 its reverse (3100330203211), we get a palindrome (4223350533224).

The spelling of 1123020330013 in words is "one trillion, one hundred twenty-three billion, twenty million, three hundred thirty thousand, thirteen".