40143320445001 has 2 divisors, whose sum is σ = 40143320445002. Its totient is φ = 40143320445000.

The previous prime is 40143320444999. The next prime is 40143320445037. The reversal of 40143320445001 is 10054402334104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38644263035401 + 1499057409600 = 6216451^2 + 1224360^2 .

It is a cyclic number.

It is not a de Polignac number, because 40143320445001 - 2¹ = 40143320444999 is a prime.

It is a super-2 number, since 2×40143320445001² (a number of 28 digits) contains 22 as substring.

Together with 40143320444999, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (40143320445601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20071660222500 + 20071660222501.

It is an arithmetic number, because the mean of its divisors is an integer number (20071660222501).

Almost surely, 2^{40143320445001} is an apocalyptic number.

It is an amenable number.

40143320445001 is a deficient number, since it is larger than the sum of its proper divisors (1).

40143320445001 is an equidigital number, since it uses as much as digits as its factorization.

40143320445001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 40143320445001 its reverse (10054402334104), we get a palindrome (50197722779105).

The spelling of 40143320445001 in words is "forty trillion, one hundred forty-three billion, three hundred twenty million, four hundred forty-five thousand, one".