1131051143 has 2 divisors, whose sum is σ = 1131051144. Its totient is φ = 1131051142.

The previous prime is 1131051121. The next prime is 1131051149. The reversal of 1131051143 is 3411501311.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1131051143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1131051149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565525571 + 565525572.

It is an arithmetic number, because the mean of its divisors is an integer number (565525572).

Almost surely, 2^1131051143 is an apocalyptic number.

1131051143 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131051143 is an equidigital number, since it uses as much as digits as its factorization.

1131051143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 1131051143 is about 33631.1038028787. The cubic root of 1131051143 is about 1041.9033018136.

Adding to 1131051143 its reverse (3411501311), we get a palindrome (4542552454).

The spelling of 1131051143 in words is "one billion, one hundred thirty-one million, fifty-one thousand, one hundred forty-three".