40205342012323 has 4 divisors (see below), whose sum is σ = 40222171375120. Its totient is φ = 40188512649528.

The previous prime is 40205342012321. The next prime is 40205342012327. The reversal of 40205342012323 is 32321024350204.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40205342012323 - 2¹ = 40205342012321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40205342012321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8414677815 + ... + 8414682592.

It is an arithmetic number, because the mean of its divisors is an integer number (10055542843780).

Almost surely, 2^{40205342012323} is an apocalyptic number.

40205342012323 is a deficient number, since it is larger than the sum of its proper divisors (16829362797).

40205342012323 is a wasteful number, since it uses less digits than its factorization.

40205342012323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16829362796.

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

Adding to 40205342012323 its reverse (32321024350204), we get a palindrome (72526366362527).

The spelling of 40205342012323 in words is "forty trillion, two hundred five billion, three hundred forty-two million, twelve thousand, three hundred twenty-three".