40023203191 has 2 divisors, whose sum is σ = 40023203192. Its totient is φ = 40023203190.

The previous prime is 40023203057. The next prime is 40023203203. The reversal of 40023203191 is 19130232004.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40023203191 - 2⁹ = 40023202679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40023201191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20011601595 + 20011601596.

It is an arithmetic number, because the mean of its divisors is an integer number (20011601596).

Almost surely, 2^40023203191 is an apocalyptic number.

40023203191 is a deficient number, since it is larger than the sum of its proper divisors (1).

40023203191 is an equidigital number, since it uses as much as digits as its factorization.

40023203191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 40023203191 its reverse (19130232004), we get a palindrome (59153435195).

The spelling of 40023203191 in words is "forty billion, twenty-three million, two hundred three thousand, one hundred ninety-one".