40231344123 has 12 divisors (see below), whose sum is σ = 58168871488. Its totient is φ = 26794620720.

The previous prime is 40231344121. The next prime is 40231344133. The reversal of 40231344123 is 32144313204.

40231344123 is a `hidden beast` number, since 402 + 3 + 134 + 4 + 123 = 666.

It is not a de Polignac number, because 40231344123 - 2¹ = 40231344121 is a prime.

It is a super-2 number, since 2×40231344123² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40231344121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2179915 + ... + 2198292.

Almost surely, 2^40231344123 is an apocalyptic number.

40231344123 is a deficient number, since it is larger than the sum of its proper divisors (17937527365).

40231344123 is a wasteful number, since it uses less digits than its factorization.

40231344123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4379234 (or 4379231 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 40231344123 its reverse (32144313204), we get a palindrome (72375657327).

The spelling of 40231344123 in words is "forty billion, two hundred thirty-one million, three hundred forty-four thousand, one hundred twenty-three".