1131178063 has 2 divisors, whose sum is σ = 1131178064. Its totient is φ = 1131178062.

The previous prime is 1131178049. The next prime is 1131178123. The reversal of 1131178063 is 3608711311.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1131178063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1131178463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565589031 + 565589032.

It is an arithmetic number, because the mean of its divisors is an integer number (565589032).

Almost surely, 2^1131178063 is an apocalyptic number.

1131178063 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131178063 is an equidigital number, since it uses as much as digits as its factorization.

1131178063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 1131178063 is about 33632.9906936627. The cubic root of 1131178063 is about 1041.9422724714.

Adding to 1131178063 its reverse (3608711311), we get a palindrome (4739889374).

The spelling of 1131178063 in words is "one billion, one hundred thirty-one million, one hundred seventy-eight thousand, sixty-three".