213312032093837 has 2 divisors, whose sum is σ = 213312032093838. Its totient is φ = 213312032093836.

The previous prime is 213312032093821. The next prime is 213312032093891. The reversal of 213312032093837 is 738390230213312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 149315056058116 + 63996976035721 = 12219454^2 + 7999811^2 .

It is a cyclic number.

It is not a de Polignac number, because 213312032093837 - 2⁴ = 213312032093821 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 213312032093791 and 213312032093800.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213312032093737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106656016046918 + 106656016046919.

It is an arithmetic number, because the mean of its divisors is an integer number (106656016046919).

Almost surely, 2^{213312032093837} is an apocalyptic number.

It is an amenable number.

213312032093837 is a deficient number, since it is larger than the sum of its proper divisors (1).

213312032093837 is an equidigital number, since it uses as much as digits as its factorization.

213312032093837 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 979776, while the sum is 47.

The spelling of 213312032093837 in words is "two hundred thirteen trillion, three hundred twelve billion, thirty-two million, ninety-three thousand, eight hundred thirty-seven".