1123390111589 has 2 divisors, whose sum is σ = 1123390111590. Its totient is φ = 1123390111588.

The previous prime is 1123390111583. The next prime is 1123390111601. The reversal of 1123390111589 is 9851110933211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1123123050625 + 267060964 = 1059775^2 + 16342^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1123390111589 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1123390111583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561695055794 + 561695055795.

It is an arithmetic number, because the mean of its divisors is an integer number (561695055795).

Almost surely, 2^{1123390111589} is an apocalyptic number.

It is an amenable number.

1123390111589 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123390111589 is an equidigital number, since it uses as much as digits as its factorization.

1123390111589 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 44.

The spelling of 1123390111589 in words is "one trillion, one hundred twenty-three billion, three hundred ninety million, one hundred eleven thousand, five hundred eighty-nine".