31322003219989 has 2 divisors, whose sum is σ = 31322003219990. Its totient is φ = 31322003219988.

The previous prime is 31322003219987. The next prime is 31322003220049. The reversal of 31322003219989 is 98991230022313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28176541352964 + 3145461867025 = 5308158^2 + 1773545^2 .

It is a cyclic number.

It is not a de Polignac number, because 31322003219989 - 2¹ = 31322003219987 is a prime.

Together with 31322003219987, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31322003219981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15661001609994 + 15661001609995.

It is an arithmetic number, because the mean of its divisors is an integer number (15661001609995).

Almost surely, 2^{31322003219989} is an apocalyptic number.

It is an amenable number.

31322003219989 is a deficient number, since it is larger than the sum of its proper divisors (1).

31322003219989 is an equidigital number, since it uses as much as digits as its factorization.

31322003219989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1259712, while the sum is 52.

The spelling of 31322003219989 in words is "thirty-one trillion, three hundred twenty-two billion, three million, two hundred nineteen thousand, nine hundred eighty-nine".