11311019 has 2 divisors, whose sum is σ = 11311020. Its totient is φ = 11311018.

The previous prime is 11310989. The next prime is 11311031. The reversal of 11311019 is 91011311.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11311019 is a prime.

It is a super-2 number, since 2×11311019² = 255878301636722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 11310988 and 11311006.

It is not a weakly prime, because it can be changed into another prime (11311049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5655509 + 5655510.

It is an arithmetic number, because the mean of its divisors is an integer number (5655510).

Almost surely, 2^11311019 is an apocalyptic number.

11311019 is a deficient number, since it is larger than the sum of its proper divisors (1).

11311019 is an equidigital number, since it uses as much as digits as its factorization.

11311019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27, while the sum is 17.

The square root of 11311019 is about 3363.1858408360. The cubic root of 11311019 is about 224.4746194458.

The spelling of 11311019 in words is "eleven million, three hundred eleven thousand, nineteen".