31332213223313 has 2 divisors, whose sum is σ = 31332213223314. Its totient is φ = 31332213223312.

The previous prime is 31332213223277. The next prime is 31332213223351. The reversal of 31332213223313 is 31332231223313.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24556900962064 + 6775312261249 = 4955492^2 + 2602943^2 .

It is a cyclic number.

It is not a de Polignac number, because 31332213223313 - 2⁸ = 31332213223057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31332213223313.

It is not a weakly prime, because it can be changed into another prime (31332213283313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15666106611656 + 15666106611657.

It is an arithmetic number, because the mean of its divisors is an integer number (15666106611657).

Almost surely, 2^{31332213223313} is an apocalyptic number.

It is an amenable number.

31332213223313 is a deficient number, since it is larger than the sum of its proper divisors (1).

31332213223313 is an equidigital number, since it uses as much as digits as its factorization.

31332213223313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34992, while the sum is 32.

Adding to 31332213223313 its reverse (31332231223313), we get a palindrome (62664444446626).

The spelling of 31332213223313 in words is "thirty-one trillion, three hundred thirty-two billion, two hundred thirteen million, two hundred twenty-three thousand, three hundred thirteen".