41013101231981 has 2 divisors, whose sum is σ = 41013101231982. Its totient is φ = 41013101231980.

The previous prime is 41013101231933. The next prime is 41013101232023. The reversal of 41013101231981 is 18913210131014.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29847920055625 + 11165181176356 = 5463325^2 + 3341434^2 .

It is a cyclic number.

It is not a de Polignac number, because 41013101231981 - 2⁶ = 41013101231917 is a prime.

It is a super-2 number, since 2×41013101231981² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41013101231681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20506550615990 + 20506550615991.

It is an arithmetic number, because the mean of its divisors is an integer number (20506550615991).

Almost surely, 2^{41013101231981} is an apocalyptic number.

It is an amenable number.

41013101231981 is a deficient number, since it is larger than the sum of its proper divisors (1).

41013101231981 is an equidigital number, since it uses as much as digits as its factorization.

41013101231981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 35.

Adding to 41013101231981 its reverse (18913210131014), we get a palindrome (59926311362995).

The spelling of 41013101231981 in words is "forty-one trillion, thirteen billion, one hundred one million, two hundred thirty-one thousand, nine hundred eighty-one".