1111031242589 has 2 divisors, whose sum is σ = 1111031242590. Its totient is φ = 1111031242588.

The previous prime is 1111031242501. The next prime is 1111031242591. The reversal of 1111031242589 is 9852421301111.

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., 646629881689 + 464401360900 = 804133^2 + 681470^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1111031242589 is a prime.

It is a Sophie Germain prime.

Together with 1111031242591, it forms a pair of twin primes.

It is a Chen 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 (1111031247589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555515621294 + 555515621295.

It is an arithmetic number, because the mean of its divisors is an integer number (555515621295).

Almost surely, 2^{1111031242589} is an apocalyptic number.

It is an amenable number.

1111031242589 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111031242589 is an equidigital number, since it uses as much as digits as its factorization.

1111031242589 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 38.

The spelling of 1111031242589 in words is "one trillion, one hundred eleven billion, thirty-one million, two hundred forty-two thousand, five hundred eighty-nine".