11111101019 has 2 divisors, whose sum is σ = 11111101020. Its totient is φ = 11111101018.

The previous prime is 11111100997. The next prime is 11111101037. The reversal of 11111101019 is 91010111111.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11111101019 is a prime.

It is a super-2 number, since 2×11111101019² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11111100988 and 11111101006.

It is not a weakly prime, because it can be changed into another prime (11111101039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555550509 + 5555550510.

It is an arithmetic number, because the mean of its divisors is an integer number (5555550510).

Almost surely, 2^11111101019 is an apocalyptic number.

11111101019 is a deficient number, since it is larger than the sum of its proper divisors (1).

11111101019 is an equidigital number, since it uses as much as digits as its factorization.

11111101019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9, while the sum is 17.

The spelling of 11111101019 in words is "eleven billion, one hundred eleven million, one hundred one thousand, nineteen".