40104440231 has 2 divisors, whose sum is σ = 40104440232. Its totient is φ = 40104440230.

The previous prime is 40104440227. The next prime is 40104440269. The reversal of 40104440231 is 13204440104.

It is a happy number.

40104440231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40104440231 - 2² = 40104440227 is a prime.

It is a super-2 number, since 2×40104440231² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40104440197 and 40104440206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40104440221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20052220115 + 20052220116.

It is an arithmetic number, because the mean of its divisors is an integer number (20052220116).

Almost surely, 2^40104440231 is an apocalyptic number.

40104440231 is a deficient number, since it is larger than the sum of its proper divisors (1).

40104440231 is an equidigital number, since it uses as much as digits as its factorization.

40104440231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 40104440231 its reverse (13204440104), we get a palindrome (53308880335).

The spelling of 40104440231 in words is "forty billion, one hundred four million, four hundred forty thousand, two hundred thirty-one".