40340303231 has 16 divisors (see below), whose sum is σ = 41955170400. Its totient is φ = 38740937088.

The previous prime is 40340303219. The next prime is 40340303233. The reversal of 40340303231 is 13230304304.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40340303231 is a prime.

It is a super-2 number, since 2×40340303231² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40340303197 and 40340303206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40340303233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4203020 + ... + 4212606.

It is an arithmetic number, because the mean of its divisors is an integer number (2622198150).

Almost surely, 2^40340303231 is an apocalyptic number.

40340303231 is a deficient number, since it is larger than the sum of its proper divisors (1614867169).

40340303231 is a wasteful number, since it uses less digits than its factorization.

40340303231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10378.

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

Adding to 40340303231 its reverse (13230304304), we get a palindrome (53570607535).

The spelling of 40340303231 in words is "forty billion, three hundred forty million, three hundred three thousand, two hundred thirty-one".