1131029819 has 2 divisors, whose sum is σ = 1131029820. Its totient is φ = 1131029818.

The previous prime is 1131029791. The next prime is 1131029843. The reversal of 1131029819 is 9189201311.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1131029819 - 2²⁸ = 862594363 is a prime.

It is a super-2 number, since 2×1131029819² = 2558456902934345522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1131029719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565514909 + 565514910.

It is an arithmetic number, because the mean of its divisors is an integer number (565514910).

Almost surely, 2^1131029819 is an apocalyptic number.

1131029819 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131029819 is an equidigital number, since it uses as much as digits as its factorization.

1131029819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 35.

The square root of 1131029819 is about 33630.7867734313. The cubic root of 1131029819 is about 1041.8967540149.

The spelling of 1131029819 in words is "one billion, one hundred thirty-one million, twenty-nine thousand, eight hundred nineteen".