141111810386621 has 2 divisors, whose sum is σ = 141111810386622. Its totient is φ = 141111810386620.

The previous prime is 141111810386579. The next prime is 141111810386629. The reversal of 141111810386621 is 126683018111141.

It is a happy number.

141111810386621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 133944999518521 + 7166810868100 = 11573461^2 + 2677090^2 .

It is a cyclic number.

It is not a de Polignac number, because 141111810386621 - 2¹⁸ = 141111810124477 is a prime.

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 (141111810386629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70555905193310 + 70555905193311.

It is an arithmetic number, because the mean of its divisors is an integer number (70555905193311).

Almost surely, 2^{141111810386621} is an apocalyptic number.

It is an amenable number.

141111810386621 is a deficient number, since it is larger than the sum of its proper divisors (1).

141111810386621 is an equidigital number, since it uses as much as digits as its factorization.

141111810386621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 55296, while the sum is 44.

Adding to 141111810386621 its reverse (126683018111141), we get a palindrome (267794828497762).

The spelling of 141111810386621 in words is "one hundred forty-one trillion, one hundred eleven billion, eight hundred ten million, three hundred eighty-six thousand, six hundred twenty-one".