40106121104191 has 2 divisors, whose sum is σ = 40106121104192. Its totient is φ = 40106121104190.

The previous prime is 40106121104167. The next prime is 40106121104353. The reversal of 40106121104191 is 19140112160104.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40106121104191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40106121404191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20053060552095 + 20053060552096.

It is an arithmetic number, because the mean of its divisors is an integer number (20053060552096).

Almost surely, 2^{40106121104191} is an apocalyptic number.

40106121104191 is a deficient number, since it is larger than the sum of its proper divisors (1).

40106121104191 is an equidigital number, since it uses as much as digits as its factorization.

40106121104191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 31.

Adding to 40106121104191 its reverse (19140112160104), we get a palindrome (59246233264295).

The spelling of 40106121104191 in words is "forty trillion, one hundred six billion, one hundred twenty-one million, one hundred four thousand, one hundred ninety-one".