40304131423 has 2 divisors, whose sum is σ = 40304131424. Its totient is φ = 40304131422.

The previous prime is 40304131421. The next prime is 40304131429. The reversal of 40304131423 is 32413140304.

40304131423 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 40304131423 - 2¹ = 40304131421 is a prime.

Together with 40304131421, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40304131421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20152065711 + 20152065712.

It is an arithmetic number, because the mean of its divisors is an integer number (20152065712).

Almost surely, 2^40304131423 is an apocalyptic number.

40304131423 is a deficient number, since it is larger than the sum of its proper divisors (1).

40304131423 is an equidigital number, since it uses as much as digits as its factorization.

40304131423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 40304131423 its reverse (32413140304), we get a palindrome (72717271727).

The spelling of 40304131423 in words is "forty billion, three hundred four million, one hundred thirty-one thousand, four hundred twenty-three".