41231231381 has 2 divisors, whose sum is σ = 41231231382. Its totient is φ = 41231231380.

The previous prime is 41231231329. The next prime is 41231231389. The reversal of 41231231381 is 18313213214.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41114050756 + 117180625 = 202766^2 + 10825^2 .

It is a cyclic number.

It is not a de Polignac number, because 41231231381 - 2⁶ = 41231231317 is a prime.

It is a super-2 number, since 2×41231231381² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41231231389) 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, 20615615690 + 20615615691.

It is an arithmetic number, because the mean of its divisors is an integer number (20615615691).

Almost surely, 2^41231231381 is an apocalyptic number.

It is an amenable number.

41231231381 is a deficient number, since it is larger than the sum of its proper divisors (1).

41231231381 is an equidigital number, since it uses as much as digits as its factorization.

41231231381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 29.

Adding to 41231231381 its reverse (18313213214), we get a palindrome (59544444595).

The spelling of 41231231381 in words is "forty-one billion, two hundred thirty-one million, two hundred thirty-one thousand, three hundred eighty-one".