40232142193 has 2 divisors, whose sum is σ = 40232142194. Its totient is φ = 40232142192.

The previous prime is 40232142191. The next prime is 40232142229. The reversal of 40232142193 is 39124123204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33447654769 + 6784487424 = 182887^2 + 82368^2 .

It is a cyclic number.

It is not a de Polignac number, because 40232142193 - 2¹ = 40232142191 is a prime.

Together with 40232142191, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (40232142191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20116071096 + 20116071097.

It is an arithmetic number, because the mean of its divisors is an integer number (20116071097).

Almost surely, 2^40232142193 is an apocalyptic number.

It is an amenable number.

40232142193 is a deficient number, since it is larger than the sum of its proper divisors (1).

40232142193 is an equidigital number, since it uses as much as digits as its factorization.

40232142193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 31.

Adding to 40232142193 its reverse (39124123204), we get a palindrome (79356265397).

The spelling of 40232142193 in words is "forty billion, two hundred thirty-two million, one hundred forty-two thousand, one hundred ninety-three".