215052341213 has 2 divisors, whose sum is σ = 215052341214. Its totient is φ = 215052341212.

The previous prime is 215052341177. The next prime is 215052341219. The reversal of 215052341213 is 312143250512.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 210531392569 + 4520948644 = 458837^2 + 67238^2 .

It is a cyclic number.

It is not a de Polignac number, because 215052341213 - 2⁸ = 215052340957 is a prime.

It is a super-2 number, since 2×215052341213² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (215052341219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107526170606 + 107526170607.

It is an arithmetic number, because the mean of its divisors is an integer number (107526170607).

Almost surely, 2^215052341213 is an apocalyptic number.

It is an amenable number.

215052341213 is a deficient number, since it is larger than the sum of its proper divisors (1).

215052341213 is an equidigital number, since it uses as much as digits as its factorization.

215052341213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 215052341213 its reverse (312143250512), we get a palindrome (527195591725).

The spelling of 215052341213 in words is "two hundred fifteen billion, fifty-two million, three hundred forty-one thousand, two hundred thirteen".