11272045181 has 2 divisors, whose sum is σ = 11272045182. Its totient is φ = 11272045180.

The previous prime is 11272045133. The next prime is 11272045193. The reversal of 11272045181 is 18154027211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10377496900 + 894548281 = 101870^2 + 29909^2 .

It is a cyclic number.

It is not a de Polignac number, because 11272045181 - 2⁶ = 11272045117 is a prime.

It is a super-2 number, since 2×11272045181² (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 (11272044181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5636022590 + 5636022591.

It is an arithmetic number, because the mean of its divisors is an integer number (5636022591).

Almost surely, 2^11272045181 is an apocalyptic number.

It is an amenable number.

11272045181 is a deficient number, since it is larger than the sum of its proper divisors (1).

11272045181 is an equidigital number, since it uses as much as digits as its factorization.

11272045181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4480, while the sum is 32.

The spelling of 11272045181 in words is "eleven billion, two hundred seventy-two million, forty-five thousand, one hundred eighty-one".