31403780341 has 2 divisors, whose sum is σ = 31403780342. Its totient is φ = 31403780340.

The previous prime is 31403780323. The next prime is 31403780357. The reversal of 31403780341 is 14308730413.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27873638116 + 3530142225 = 166954^2 + 59415^2 .

It is a cyclic number.

It is not a de Polignac number, because 31403780341 - 2⁹ = 31403779829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31403780297 and 31403780306.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31403780311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15701890170 + 15701890171.

It is an arithmetic number, because the mean of its divisors is an integer number (15701890171).

Almost surely, 2^31403780341 is an apocalyptic number.

It is an amenable number.

31403780341 is a deficient number, since it is larger than the sum of its proper divisors (1).

31403780341 is an equidigital number, since it uses as much as digits as its factorization.

31403780341 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 34.

The spelling of 31403780341 in words is "thirty-one billion, four hundred three million, seven hundred eighty thousand, three hundred forty-one".