11295172780181 has 2 divisors, whose sum is σ = 11295172780182. Its totient is φ = 11295172780180.

The previous prime is 11295172780103. The next prime is 11295172780201. The reversal of 11295172780181 is 18108727159211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10889670002500 + 405502777681 = 3299950^2 + 636791^2 .

It is a cyclic number.

It is not a de Polignac number, because 11295172780181 - 2³⁰ = 11294099038357 is a prime.

It is a super-2 number, since 2×11295172780181² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11295172788181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5647586390090 + 5647586390091.

It is an arithmetic number, because the mean of its divisors is an integer number (5647586390091).

Almost surely, 2^{11295172780181} is an apocalyptic number.

It is an amenable number.

11295172780181 is a deficient number, since it is larger than the sum of its proper divisors (1).

11295172780181 is an equidigital number, since it uses as much as digits as its factorization.

11295172780181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 564480, while the sum is 53.

The spelling of 11295172780181 in words is "eleven trillion, two hundred ninety-five billion, one hundred seventy-two million, seven hundred eighty thousand, one hundred eighty-one".