1123043113061 has 2 divisors, whose sum is σ = 1123043113062. Its totient is φ = 1123043113060.

The previous prime is 1123043113039. The next prime is 1123043113063. The reversal of 1123043113061 is 1603113403211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1095959828161 + 27083284900 = 1046881^2 + 164570^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1123043113061 is a prime.

It is a super-2 number, since 2×1123043113061² (a number of 25 digits) contains 22 as substring.

Together with 1123043113063, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1123043113061.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1123043113063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561521556530 + 561521556531.

It is an arithmetic number, because the mean of its divisors is an integer number (561521556531).

Almost surely, 2^{1123043113061} is an apocalyptic number.

It is an amenable number.

1123043113061 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123043113061 is an equidigital number, since it uses as much as digits as its factorization.

1123043113061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 26.

Adding to 1123043113061 its reverse (1603113403211), we get a palindrome (2726156516272).

The spelling of 1123043113061 in words is "one trillion, one hundred twenty-three billion, forty-three million, one hundred thirteen thousand, sixty-one".