1123220321369 has 2 divisors, whose sum is σ = 1123220321370. Its totient is φ = 1123220321368.

The previous prime is 1123220321317. The next prime is 1123220321393. The reversal of 1123220321369 is 9631230223211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1116826240000 + 6394081369 = 1056800^2 + 79963^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1123220321369 is a prime.

It is a super-2 number, since 2×1123220321369² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1123220321669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561610160684 + 561610160685.

It is an arithmetic number, because the mean of its divisors is an integer number (561610160685).

Almost surely, 2^{1123220321369} is an apocalyptic number.

It is an amenable number.

1123220321369 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123220321369 is an equidigital number, since it uses as much as digits as its factorization.

1123220321369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 35.

The spelling of 1123220321369 in words is "one trillion, one hundred twenty-three billion, two hundred twenty million, three hundred twenty-one thousand, three hundred sixty-nine".