1131111283 has 2 divisors, whose sum is σ = 1131111284. Its totient is φ = 1131111282.

The previous prime is 1131111281. The next prime is 1131111313. The reversal of 1131111283 is 3821111311.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1131111283 - 2¹ = 1131111281 is a prime.

Together with 1131111281, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1131111281) 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, 565555641 + 565555642.

It is an arithmetic number, because the mean of its divisors is an integer number (565555642).

Almost surely, 2^1131111283 is an apocalyptic number.

1131111283 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131111283 is an equidigital number, since it uses as much as digits as its factorization.

1131111283 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 144, while the sum is 22.

The square root of 1131111283 is about 33631.9979037820. The cubic root of 1131111283 is about 1041.9217681033.

Adding to 1131111283 its reverse (3821111311), we get a palindrome (4952222594).

The spelling of 1131111283 in words is "one billion, one hundred thirty-one million, one hundred eleven thousand, two hundred eighty-three".