11454510181 has 2 divisors, whose sum is σ = 11454510182. Its totient is φ = 11454510180.

The previous prime is 11454510169. The next prime is 11454510203. The reversal of 11454510181 is 18101545411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7713230625 + 3741279556 = 87825^2 + 61166^2 .

It is a cyclic number.

It is not a de Polignac number, because 11454510181 - 2²⁷ = 11320292453 is a prime.

It is a super-2 number, since 2×11454510181² (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 (11454510281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5727255090 + 5727255091.

It is an arithmetic number, because the mean of its divisors is an integer number (5727255091).

Almost surely, 2^11454510181 is an apocalyptic number.

It is an amenable number.

11454510181 is a deficient number, since it is larger than the sum of its proper divisors (1).

11454510181 is an equidigital number, since it uses as much as digits as its factorization.

11454510181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3200, while the sum is 31.

The spelling of 11454510181 in words is "eleven billion, four hundred fifty-four million, five hundred ten thousand, one hundred eighty-one".