11080327781 has 2 divisors, whose sum is σ = 11080327782. Its totient is φ = 11080327780.

The previous prime is 11080327771. The next prime is 11080327787. The reversal of 11080327781 is 18772308011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11073352900 + 6974881 = 105230^2 + 2641^2 .

It is a cyclic number.

It is not a de Polignac number, because 11080327781 - 2²⁶ = 11013218917 is a prime.

It is a super-2 number, since 2×11080327781² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11080327787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5540163890 + 5540163891.

It is an arithmetic number, because the mean of its divisors is an integer number (5540163891).

Almost surely, 2^11080327781 is an apocalyptic number.

It is an amenable number.

11080327781 is a deficient number, since it is larger than the sum of its proper divisors (1).

11080327781 is an equidigital number, since it uses as much as digits as its factorization.

11080327781 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18816, while the sum is 38.

The spelling of 11080327781 in words is "eleven billion, eighty million, three hundred twenty-seven thousand, seven hundred eighty-one".