213320131877 has 2 divisors, whose sum is σ = 213320131878. Its totient is φ = 213320131876.

The previous prime is 213320131847. The next prime is 213320131883. The reversal of 213320131877 is 778131023312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 124094857441 + 89225274436 = 352271^2 + 298706^2 .

It is a cyclic number.

It is not a de Polignac number, because 213320131877 - 2¹⁴ = 213320115493 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213320131877.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213320131837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106660065938 + 106660065939.

It is an arithmetic number, because the mean of its divisors is an integer number (106660065939).

Almost surely, 2^213320131877 is an apocalyptic number.

It is an amenable number.

213320131877 is a deficient number, since it is larger than the sum of its proper divisors (1).

213320131877 is an equidigital number, since it uses as much as digits as its factorization.

213320131877 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42336, while the sum is 38.

The spelling of 213320131877 in words is "two hundred thirteen billion, three hundred twenty million, one hundred thirty-one thousand, eight hundred seventy-seven".