1131310979 has 2 divisors, whose sum is σ = 1131310980. Its totient is φ = 1131310978.

The previous prime is 1131310963. The next prime is 1131311011. The reversal of 1131310979 is 9790131311.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1131310979 - 2⁴ = 1131310963 is a prime.

It is not a weakly prime, because it can be changed into another prime (1131310919) 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, 565655489 + 565655490.

It is an arithmetic number, because the mean of its divisors is an integer number (565655490).

Almost surely, 2^1131310979 is an apocalyptic number.

1131310979 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131310979 is an equidigital number, since it uses as much as digits as its factorization.

1131310979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5103, while the sum is 35.

The square root of 1131310979 is about 33634.9666121434. The cubic root of 1131310979 is about 1041.9830810702.

The spelling of 1131310979 in words is "one billion, one hundred thirty-one million, three hundred ten thousand, nine hundred seventy-nine".