1131288563 has 2 divisors, whose sum is σ = 1131288564. Its totient is φ = 1131288562.

The previous prime is 1131288559. The next prime is 1131288569. The reversal of 1131288563 is 3658821311.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1131288563 - 2² = 1131288559 is a prime.

It is not a weakly prime, because it can be changed into another prime (1131288569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565644281 + 565644282.

It is an arithmetic number, because the mean of its divisors is an integer number (565644282).

Almost surely, 2^1131288563 is an apocalyptic number.

1131288563 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131288563 is an equidigital number, since it uses as much as digits as its factorization.

1131288563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34560, while the sum is 38.

The square root of 1131288563 is about 33634.6333858420. The cubic root of 1131288563 is about 1041.9761990111.

The spelling of 1131288563 in words is "one billion, one hundred thirty-one million, two hundred eighty-eight thousand, five hundred sixty-three".