40423411231 has 4 divisors (see below), whose sum is σ = 46198184272. Its totient is φ = 34648638192.

The previous prime is 40423411229. The next prime is 40423411309. The reversal of 40423411231 is 13211432404.

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

It is not a de Polignac number, because 40423411231 - 2¹ = 40423411229 is a prime.

It is a super-2 number, since 2×40423411231² (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 = 40423411196 and 40423411205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40423411201) 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 3 ways as a sum of consecutive naturals, for example, 2887386510 + ... + 2887386523.

It is an arithmetic number, because the mean of its divisors is an integer number (11549546068).

Almost surely, 2^40423411231 is an apocalyptic number.

40423411231 is a deficient number, since it is larger than the sum of its proper divisors (5774773041).

40423411231 is an equidigital number, since it uses as much as digits as its factorization.

40423411231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5774773040.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 40423411231 its reverse (13211432404), we get a palindrome (53634843635).

The spelling of 40423411231 in words is "forty billion, four hundred twenty-three million, four hundred eleven thousand, two hundred thirty-one".