1114431181 has 2 divisors, whose sum is σ = 1114431182. Its totient is φ = 1114431180.

The previous prime is 1114431173. The next prime is 1114431191. The reversal of 1114431181 is 1811344111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1040643081 + 73788100 = 32259^2 + 8590^2 .

It is an emirp because it is prime and its reverse (1811344111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1114431181 - 2³ = 1114431173 is a prime.

It is a super-2 number, since 2×1114431181² = 2483913714370109522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1114431191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 557215590 + 557215591.

It is an arithmetic number, because the mean of its divisors is an integer number (557215591).

Almost surely, 2^1114431181 is an apocalyptic number.

It is an amenable number.

1114431181 is a deficient number, since it is larger than the sum of its proper divisors (1).

1114431181 is an equidigital number, since it uses as much as digits as its factorization.

1114431181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 384, while the sum is 25.

The square root of 1114431181 is about 33383.0972349781. The cubic root of 1114431181 is about 1036.7747657436.

Adding to 1114431181 its reverse (1811344111), we get a palindrome (2925775292).

The spelling of 1114431181 in words is "one billion, one hundred fourteen million, four hundred thirty-one thousand, one hundred eighty-one".