40323123203 has 4 divisors (see below), whose sum is σ = 43988861688. Its totient is φ = 36657384720.

The previous prime is 40323123151. The next prime is 40323123209. The reversal of 40323123203 is 30232132304.

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

It is not a de Polignac number, because 40323123203 - 2⁸ = 40323122947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40323123209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1832869226 + ... + 1832869247.

It is an arithmetic number, because the mean of its divisors is an integer number (10997215422).

Almost surely, 2^40323123203 is an apocalyptic number.

40323123203 is a deficient number, since it is larger than the sum of its proper divisors (3665738485).

40323123203 is a wasteful number, since it uses less digits than its factorization.

40323123203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3665738484.

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 40323123203 its reverse (30232132304), we get a palindrome (70555255507).

The spelling of 40323123203 in words is "forty billion, three hundred twenty-three million, one hundred twenty-three thousand, two hundred three".