31441400323429 has 2 divisors, whose sum is σ = 31441400323430. Its totient is φ = 31441400323428.

The previous prime is 31441400323423. The next prime is 31441400323477. The reversal of 31441400323429 is 92432300414413.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15987082608225 + 15454317715204 = 3998385^2 + 3931198^2 .

It is an emirp because it is prime and its reverse (92432300414413) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31441400323429 - 2¹⁷ = 31441400192357 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31441400323391 and 31441400323400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31441400323423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15720700161714 + 15720700161715.

It is an arithmetic number, because the mean of its divisors is an integer number (15720700161715).

Almost surely, 2^{31441400323429} is an apocalyptic number.

It is an amenable number.

31441400323429 is a deficient number, since it is larger than the sum of its proper divisors (1).

31441400323429 is an equidigital number, since it uses as much as digits as its factorization.

31441400323429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 248832, while the sum is 40.

The spelling of 31441400323429 in words is "thirty-one trillion, four hundred forty-one billion, four hundred million, three hundred twenty-three thousand, four hundred twenty-nine".