40322312423 has 4 divisors (see below), whose sum is σ = 40325057760. Its totient is φ = 40319567088.

The previous prime is 40322312389. The next prime is 40322312431. The reversal of 40322312423 is 32421322304.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40322312423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40322312392 and 40322312401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40322312123) 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 in 3 ways as a sum of consecutive naturals, for example, 1350518 + ... + 1380051.

It is an arithmetic number, because the mean of its divisors is an integer number (10081264440).

Almost surely, 2^40322312423 is an apocalyptic number.

40322312423 is a deficient number, since it is larger than the sum of its proper divisors (2745337).

40322312423 is a wasteful number, since it uses less digits than its factorization.

40322312423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2745336.

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 40322312423 its reverse (32421322304), we get a palindrome (72743634727).

The spelling of 40322312423 in words is "forty billion, three hundred twenty-two million, three hundred twelve thousand, four hundred twenty-three".