31303232213009 has 2 divisors, whose sum is σ = 31303232213010. Its totient is φ = 31303232213008.

The previous prime is 31303232213003. The next prime is 31303232213081. The reversal of 31303232213009 is 90031223230313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30072852112384 + 1230380100625 = 5483872^2 + 1109225^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31303232213009 is a prime.

It is not a weakly prime, because it can be changed into another prime (31303232213003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15651616106504 + 15651616106505.

It is an arithmetic number, because the mean of its divisors is an integer number (15651616106505).

Almost surely, 2^{31303232213009} is an apocalyptic number.

It is an amenable number.

31303232213009 is a deficient number, since it is larger than the sum of its proper divisors (1).

31303232213009 is an equidigital number, since it uses as much as digits as its factorization.

31303232213009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17496, while the sum is 32.

The spelling of 31303232213009 in words is "thirty-one trillion, three hundred three billion, two hundred thirty-two million, two hundred thirteen thousand, nine".