40012341181 has 2 divisors, whose sum is σ = 40012341182. Its totient is φ = 40012341180.

The previous prime is 40012341179. The next prime is 40012341269. The reversal of 40012341181 is 18114321004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37768424281 + 2243916900 = 194341^2 + 47370^2 .

It is a cyclic number.

It is not a de Polignac number, because 40012341181 - 2¹ = 40012341179 is a prime.

It is a super-2 number, since 2×40012341181² (a number of 22 digits) contains 22 as substring.

Together with 40012341179, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40012341121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20006170590 + 20006170591.

It is an arithmetic number, because the mean of its divisors is an integer number (20006170591).

Almost surely, 2^40012341181 is an apocalyptic number.

It is an amenable number.

40012341181 is a deficient number, since it is larger than the sum of its proper divisors (1).

40012341181 is an equidigital number, since it uses as much as digits as its factorization.

40012341181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 25.

Adding to 40012341181 its reverse (18114321004), we get a palindrome (58126662185).

The spelling of 40012341181 in words is "forty billion, twelve million, three hundred forty-one thousand, one hundred eighty-one".