40323211205191 has 2 divisors, whose sum is σ = 40323211205192. Its totient is φ = 40323211205190.

The previous prime is 40323211205161. The next prime is 40323211205213. The reversal of 40323211205191 is 19150211232304.

40323211205191 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 is a cyclic number.

It is not a de Polignac number, because 40323211205191 - 2²⁵ = 40323177650759 is a prime.

It is a super-2 number, since 2×40323211205191² (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 (40323211205161) 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, 20161605602595 + 20161605602596.

It is an arithmetic number, because the mean of its divisors is an integer number (20161605602596).

Almost surely, 2^{40323211205191} is an apocalyptic number.

40323211205191 is a deficient number, since it is larger than the sum of its proper divisors (1).

40323211205191 is an equidigital number, since it uses as much as digits as its factorization.

40323211205191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 34.

Adding to 40323211205191 its reverse (19150211232304), we get a palindrome (59473422437495).

The spelling of 40323211205191 in words is "forty trillion, three hundred twenty-three billion, two hundred eleven million, two hundred five thousand, one hundred ninety-one".