213243331201 has 2 divisors, whose sum is σ = 213243331202. Its totient is φ = 213243331200.

The previous prime is 213243331181. The next prime is 213243331207. The reversal of 213243331201 is 102133342312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 203152124176 + 10091207025 = 450724^2 + 100455^2 .

It is a cyclic number.

It is not a de Polignac number, because 213243331201 - 2¹¹ = 213243329153 is a prime.

It is not a weakly prime, because it can be changed into another prime (213243331207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106621665600 + 106621665601.

It is an arithmetic number, because the mean of its divisors is an integer number (106621665601).

Almost surely, 2^213243331201 is an apocalyptic number.

It is an amenable number.

213243331201 is a deficient number, since it is larger than the sum of its proper divisors (1).

213243331201 is an equidigital number, since it uses as much as digits as its factorization.

213243331201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 213243331201 its reverse (102133342312), we get a palindrome (315376673513).

The spelling of 213243331201 in words is "two hundred thirteen billion, two hundred forty-three million, three hundred thirty-one thousand, two hundred one".