11201131177 has 2 divisors, whose sum is σ = 11201131178. Its totient is φ = 11201131176.

The previous prime is 11201131171. The next prime is 11201131231. The reversal of 11201131177 is 77113110211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7586235801 + 3614895376 = 87099^2 + 60124^2 .

It is a cyclic number.

It is not a de Polignac number, because 11201131177 - 2²³ = 11192742569 is a prime.

It is a super-2 number, since 2×11201131177² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11201131171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5600565588 + 5600565589.

It is an arithmetic number, because the mean of its divisors is an integer number (5600565589).

Almost surely, 2^11201131177 is an apocalyptic number.

It is an amenable number.

11201131177 is a deficient number, since it is larger than the sum of its proper divisors (1).

11201131177 is an equidigital number, since it uses as much as digits as its factorization.

11201131177 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 294, while the sum is 25.

Adding to 11201131177 its reverse (77113110211), we get a palindrome (88314241388).

The spelling of 11201131177 in words is "eleven billion, two hundred one million, one hundred thirty-one thousand, one hundred seventy-seven".