213232193261 has 2 divisors, whose sum is σ = 213232193262. Its totient is φ = 213232193260.

The previous prime is 213232193249. The next prime is 213232193299. The reversal of 213232193261 is 162391232312.

213232193261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114467188900 + 98765004361 = 338330^2 + 314269^2 .

It is a cyclic number.

It is not a de Polignac number, because 213232193261 - 2⁶ = 213232193197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213232193231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106616096630 + 106616096631.

It is an arithmetic number, because the mean of its divisors is an integer number (106616096631).

Almost surely, 2^213232193261 is an apocalyptic number.

It is an amenable number.

213232193261 is a deficient number, since it is larger than the sum of its proper divisors (1).

213232193261 is an equidigital number, since it uses as much as digits as its factorization.

213232193261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328, while the sum is 35.

The spelling of 213232193261 in words is "two hundred thirteen billion, two hundred thirty-two million, one hundred ninety-three thousand, two hundred sixty-one".