1120023123281 has 2 divisors, whose sum is σ = 1120023123282. Its totient is φ = 1120023123280.

The previous prime is 1120023123209. The next prime is 1120023123311. The reversal of 1120023123281 is 1823213200211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1099058689600 + 20964433681 = 1048360^2 + 144791^2 .

It is a cyclic number.

It is not a de Polignac number, because 1120023123281 - 2³⁰ = 1118949381457 is a prime.

It is a super-2 number, since 2×1120023123281² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1120023123281.

It is not a weakly prime, because it can be changed into another prime (1120023123781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560011561640 + 560011561641.

It is an arithmetic number, because the mean of its divisors is an integer number (560011561641).

Almost surely, 2^{1120023123281} is an apocalyptic number.

It is an amenable number.

1120023123281 is a deficient number, since it is larger than the sum of its proper divisors (1).

1120023123281 is an equidigital number, since it uses as much as digits as its factorization.

1120023123281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 26.

Adding to 1120023123281 its reverse (1823213200211), we get a palindrome (2943236323492).

The spelling of 1120023123281 in words is "one trillion, one hundred twenty billion, twenty-three million, one hundred twenty-three thousand, two hundred eighty-one".