1123442323121 has 2 divisors, whose sum is σ = 1123442323122. Its totient is φ = 1123442323120.

The previous prime is 1123442323049. The next prime is 1123442323127. The reversal of 1123442323121 is 1213232443211.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1123313818225 + 128504896 = 1059865^2 + 11336^2 .

It is an emirp because it is prime and its reverse (1213232443211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1123442323121 - 2¹⁴ = 1123442306737 is a prime.

It is not a weakly prime, because it can be changed into another prime (1123442323127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561721161560 + 561721161561.

It is an arithmetic number, because the mean of its divisors is an integer number (561721161561).

Almost surely, 2^{1123442323121} is an apocalyptic number.

It is an amenable number.

1123442323121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123442323121 is an equidigital number, since it uses as much as digits as its factorization.

1123442323121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 29.

Adding to 1123442323121 its reverse (1213232443211), we get a palindrome (2336674766332).

The spelling of 1123442323121 in words is "one trillion, one hundred twenty-three billion, four hundred forty-two million, three hundred twenty-three thousand, one hundred twenty-one".