40235113231 has 8 divisors (see below), whose sum is σ = 40277865600. Its totient is φ = 40192385880.

The previous prime is 40235113199. The next prime is 40235113253. The reversal of 40235113231 is 13231153204.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40235113231 - 2⁵ = 40235113199 is a prime.

It is a super-2 number, since 2×40235113231² (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 = 40235113196 and 40235113205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40232113231) 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 7 ways as a sum of consecutive naturals, for example, 5319030 + ... + 5326588.

It is an arithmetic number, because the mean of its divisors is an integer number (5034733200).

Almost surely, 2^40235113231 is an apocalyptic number.

40235113231 is a deficient number, since it is larger than the sum of its proper divisors (42752369).

40235113231 is a wasteful number, since it uses less digits than its factorization.

40235113231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12509.

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 40235113231 its reverse (13231153204), we get a palindrome (53466266435).

The spelling of 40235113231 in words is "forty billion, two hundred thirty-five million, one hundred thirteen thousand, two hundred thirty-one".