11161019 has 2 divisors, whose sum is σ = 11161020. Its totient is φ = 11161018.

The previous prime is 11161009. The next prime is 11161021. The reversal of 11161019 is 91016111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11161019 - 2¹² = 11156923 is a prime.

It is a super-2 number, since 2×11161019² = 249136690236722, which contains 22 as substring.

Together with 11161021, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11161009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5580509 + 5580510.

It is an arithmetic number, because the mean of its divisors is an integer number (5580510).

Almost surely, 2^11161019 is an apocalyptic number.

11161019 is a deficient number, since it is larger than the sum of its proper divisors (1).

11161019 is an equidigital number, since it uses as much as digits as its factorization.

11161019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 20.

The square root of 11161019 is about 3340.8111290523. The cubic root of 11161019 is about 223.4779175650.

The spelling of 11161019 in words is "eleven million, one hundred sixty-one thousand, nineteen".