11131021277 has 2 divisors, whose sum is σ = 11131021278. Its totient is φ = 11131021276.

The previous prime is 11131021267. The next prime is 11131021331. The reversal of 11131021277 is 77212013111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10744151716 + 386869561 = 103654^2 + 19669^2 .

It is an emirp because it is prime and its reverse (77212013111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11131021277 - 2⁴ = 11131021261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11131021267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5565510638 + 5565510639.

It is an arithmetic number, because the mean of its divisors is an integer number (5565510639).

Almost surely, 2^11131021277 is an apocalyptic number.

It is an amenable number.

11131021277 is a deficient number, since it is larger than the sum of its proper divisors (1).

11131021277 is an equidigital number, since it uses as much as digits as its factorization.

11131021277 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 588, while the sum is 26.

Adding to 11131021277 its reverse (77212013111), we get a palindrome (88343034388).

The spelling of 11131021277 in words is "eleven billion, one hundred thirty-one million, twenty-one thousand, two hundred seventy-seven".