11143234181 has 2 divisors, whose sum is σ = 11143234182. Its totient is φ = 11143234180.

The previous prime is 11143234147. The next prime is 11143234211. The reversal of 11143234181 is 18143234111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11137636225 + 5597956 = 105535^2 + 2366^2 .

It is a cyclic number.

It is not a de Polignac number, because 11143234181 - 2¹⁴ = 11143217797 is a prime.

It is a super-2 number, since 2×11143234181² (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 (11143234111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5571617090 + 5571617091.

It is an arithmetic number, because the mean of its divisors is an integer number (5571617091).

Almost surely, 2^11143234181 is an apocalyptic number.

It is an amenable number.

11143234181 is a deficient number, since it is larger than the sum of its proper divisors (1).

11143234181 is an equidigital number, since it uses as much as digits as its factorization.

11143234181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2304, while the sum is 29.

Adding to 11143234181 its reverse (18143234111), we get a palindrome (29286468292).

The spelling of 11143234181 in words is "eleven billion, one hundred forty-three million, two hundred thirty-four thousand, one hundred eighty-one".