31332223203401 has 2 divisors, whose sum is σ = 31332223203402. Its totient is φ = 31332223203400.

The previous prime is 31332223203317. The next prime is 31332223203419. The reversal of 31332223203401 is 10430232223313.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31309609059001 + 22614144400 = 5595499^2 + 150380^2 .

It is a cyclic number.

It is not a de Polignac number, because 31332223203401 - 2³⁸ = 31057345296457 is a prime.

It is not a weakly prime, because it can be changed into another prime (31332223203481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15666111601700 + 15666111601701.

It is an arithmetic number, because the mean of its divisors is an integer number (15666111601701).

Almost surely, 2^{31332223203401} is an apocalyptic number.

It is an amenable number.

31332223203401 is a deficient number, since it is larger than the sum of its proper divisors (1).

31332223203401 is an equidigital number, since it uses as much as digits as its factorization.

31332223203401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 29.

Adding to 31332223203401 its reverse (10430232223313), we get a palindrome (41762455426714).

The spelling of 31332223203401 in words is "thirty-one trillion, three hundred thirty-two billion, two hundred twenty-three million, two hundred three thousand, four hundred one".