1131043019 has 2 divisors, whose sum is σ = 1131043020. Its totient is φ = 1131043018.

The previous prime is 1131042961. The next prime is 1131043073. The reversal of 1131043019 is 9103401311.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1131043019 - 2²⁰ = 1129994443 is a prime.

It is a super-2 number, since 2×1131043019² = 2558516621657268722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 1131042985 and 1131043003.

It is not a weakly prime, because it can be changed into another prime (1131043619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565521509 + 565521510.

It is an arithmetic number, because the mean of its divisors is an integer number (565521510).

Almost surely, 2^1131043019 is an apocalyptic number.

1131043019 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131043019 is an equidigital number, since it uses as much as digits as its factorization.

1131043019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 1131043019 is about 33630.9830216127. The cubic root of 1131043019 is about 1041.9008072484.

The spelling of 1131043019 in words is "one billion, one hundred thirty-one million, forty-three thousand, nineteen".