213301144237 has 2 divisors, whose sum is σ = 213301144238. Its totient is φ = 213301144236.

The previous prime is 213301144207. The next prime is 213301144241. The reversal of 213301144237 is 732441103312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 211847552361 + 1453591876 = 460269^2 + 38126^2 .

It is a cyclic number.

It is not a de Polignac number, because 213301144237 - 2¹¹ = 213301142189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 213301144199 and 213301144208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213301144207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106650572118 + 106650572119.

It is an arithmetic number, because the mean of its divisors is an integer number (106650572119).

Almost surely, 2^213301144237 is an apocalyptic number.

It is an amenable number.

213301144237 is a deficient number, since it is larger than the sum of its proper divisors (1).

213301144237 is an equidigital number, since it uses as much as digits as its factorization.

213301144237 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 31.

Adding to 213301144237 its reverse (732441103312), we get a palindrome (945742247549).

The spelling of 213301144237 in words is "two hundred thirteen billion, three hundred one million, one hundred forty-four thousand, two hundred thirty-seven".