40731014231 has 2 divisors, whose sum is σ = 40731014232. Its totient is φ = 40731014230.

The previous prime is 40731014209. The next prime is 40731014273. The reversal of 40731014231 is 13241013704.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40731014231 - 2⁶ = 40731014167 is a prime.

It is a super-2 number, since 2×40731014231² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40731014231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40731014131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20365507115 + 20365507116.

It is an arithmetic number, because the mean of its divisors is an integer number (20365507116).

Almost surely, 2^40731014231 is an apocalyptic number.

40731014231 is a deficient number, since it is larger than the sum of its proper divisors (1).

40731014231 is an equidigital number, since it uses as much as digits as its factorization.

40731014231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 26.

Adding to 40731014231 its reverse (13241013704), we get a palindrome (53972027935).

The spelling of 40731014231 in words is "forty billion, seven hundred thirty-one million, fourteen thousand, two hundred thirty-one".