11011030391 has 2 divisors, whose sum is σ = 11011030392. Its totient is φ = 11011030390.

The previous prime is 11011030363. The next prime is 11011030439. The reversal of 11011030391 is 19303011011.

It is a weak prime.

It is an emirp because it is prime and its reverse (19303011011) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11011030391 is a prime.

It is a super-2 number, since 2×11011030391² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11011030291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5505515195 + 5505515196.

It is an arithmetic number, because the mean of its divisors is an integer number (5505515196).

Almost surely, 2^11011030391 is an apocalyptic number.

11011030391 is a deficient number, since it is larger than the sum of its proper divisors (1).

11011030391 is an equidigital number, since it uses as much as digits as its factorization.

11011030391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81, while the sum is 20.

The spelling of 11011030391 in words is "eleven billion, eleven million, thirty thousand, three hundred ninety-one".