40215432343 has 2 divisors, whose sum is σ = 40215432344. Its totient is φ = 40215432342.

The previous prime is 40215432337. The next prime is 40215432427. The reversal of 40215432343 is 34323451204.

It is a happy number.

40215432343 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40215432343 - 2¹⁷ = 40215301271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40215432143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20107716171 + 20107716172.

It is an arithmetic number, because the mean of its divisors is an integer number (20107716172).

Almost surely, 2^40215432343 is an apocalyptic number.

40215432343 is a deficient number, since it is larger than the sum of its proper divisors (1).

40215432343 is an equidigital number, since it uses as much as digits as its factorization.

40215432343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 31.

Adding to 40215432343 its reverse (34323451204), we get a palindrome (74538883547).

The spelling of 40215432343 in words is "forty billion, two hundred fifteen million, four hundred thirty-two thousand, three hundred forty-three".