1031144111 has 2 divisors, whose sum is σ = 1031144112. Its totient is φ = 1031144110.

The previous prime is 1031144087. The next prime is 1031144113. The reversal of 1031144111 is 1114411301.

It is a strong prime.

It is an emirp because it is prime and its reverse (1114411301) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1031144111 is a prime.

Together with 1031144113, 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 1031144111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1031144113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515572055 + 515572056.

It is an arithmetic number, because the mean of its divisors is an integer number (515572056).

Almost surely, 2^1031144111 is an apocalyptic number.

1031144111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1031144111 is an equidigital number, since it uses as much as digits as its factorization.

1031144111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 17.

The square root of 1031144111 is about 32111.4327148447. The cubic root of 1031144111 is about 1010.2754243465.

Adding to 1031144111 its reverse (1114411301), we get a palindrome (2145555412).

The spelling of 1031144111 in words is "one billion, thirty-one million, one hundred forty-four thousand, one hundred eleven".