40403323143 has 6 divisors (see below), whose sum is σ = 58360355664. Its totient is φ = 26935548756.

The previous prime is 40403323109. The next prime is 40403323151. The reversal of 40403323143 is 34132330404.

It is not a de Polignac number, because 40403323143 - 2¹³ = 40403314951 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40403323183) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2244629055 + ... + 2244629072.

It is an arithmetic number, because the mean of its divisors is an integer number (9726725944).

Almost surely, 2^40403323143 is an apocalyptic number.

40403323143 is a deficient number, since it is larger than the sum of its proper divisors (17957032521).

40403323143 is a wasteful number, since it uses less digits than its factorization.

40403323143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4489258133 (or 4489258130 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 40403323143 its reverse (34132330404), we get a palindrome (74535653547).

The spelling of 40403323143 in words is "forty billion, four hundred three million, three hundred twenty-three thousand, one hundred forty-three".