1131011983 has 2 divisors, whose sum is σ = 1131011984. Its totient is φ = 1131011982.

The previous prime is 1131011963. The next prime is 1131012007. The reversal of 1131011983 is 3891101311.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1131011983 - 2¹³ = 1131003791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1131011963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565505991 + 565505992.

It is an arithmetic number, because the mean of its divisors is an integer number (565505992).

Almost surely, 2^1131011983 is an apocalyptic number.

1131011983 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131011983 is an equidigital number, since it uses as much as digits as its factorization.

1131011983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 28.

The square root of 1131011983 is about 33630.5215986907. The cubic root of 1131011983 is about 1041.8912771867.

The spelling of 1131011983 in words is "one billion, one hundred thirty-one million, eleven thousand, nine hundred eighty-three".