213200010997 has 2 divisors, whose sum is σ = 213200010998. Its totient is φ = 213200010996.

The previous prime is 213200010943. The next prime is 213200011069. The reversal of 213200010997 is 799010002312.

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., 116445420081 + 96754590916 = 341241^2 + 311054^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213200010997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213200013997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106600005498 + 106600005499.

It is an arithmetic number, because the mean of its divisors is an integer number (106600005499).

Almost surely, 2^213200010997 is an apocalyptic number.

It is an amenable number.

213200010997 is a deficient number, since it is larger than the sum of its proper divisors (1).

213200010997 is an equidigital number, since it uses as much as digits as its factorization.

213200010997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804, while the sum is 34.

The spelling of 213200010997 in words is "two hundred thirteen billion, two hundred million, ten thousand, nine hundred ninety-seven".