213254230913 has 2 divisors, whose sum is σ = 213254230914. Its totient is φ = 213254230912.

The previous prime is 213254230883. The next prime is 213254230921. The reversal of 213254230913 is 319032452312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115170639424 + 98083591489 = 339368^2 + 313183^2 .

It is a cyclic number.

It is not a de Polignac number, because 213254230913 - 2¹⁸ = 213253968769 is a prime.

It is not a weakly prime, because it can be changed into another prime (213254230933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106627115456 + 106627115457.

It is an arithmetic number, because the mean of its divisors is an integer number (106627115457).

Almost surely, 2^213254230913 is an apocalyptic number.

It is an amenable number.

213254230913 is a deficient number, since it is larger than the sum of its proper divisors (1).

213254230913 is an equidigital number, since it uses as much as digits as its factorization.

213254230913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 35.

The spelling of 213254230913 in words is "two hundred thirteen billion, two hundred fifty-four million, two hundred thirty thousand, nine hundred thirteen".