213626121301 has 2 divisors, whose sum is σ = 213626121302. Its totient is φ = 213626121300.

The previous prime is 213626121253. The next prime is 213626121367. The reversal of 213626121301 is 103121626312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 166322046276 + 47304075025 = 407826^2 + 217495^2 .

It is a cyclic number.

It is not a de Polignac number, because 213626121301 - 2²⁹ = 213089250389 is a prime.

It is a super-2 number, since 2×213626121301² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 213626121301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213626121001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106813060650 + 106813060651.

It is an arithmetic number, because the mean of its divisors is an integer number (106813060651).

Almost surely, 2^213626121301 is an apocalyptic number.

It is an amenable number.

213626121301 is a deficient number, since it is larger than the sum of its proper divisors (1).

213626121301 is an equidigital number, since it uses as much as digits as its factorization.

213626121301 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 28.

Adding to 213626121301 its reverse (103121626312), we get a palindrome (316747747613).

The spelling of 213626121301 in words is "two hundred thirteen billion, six hundred twenty-six million, one hundred twenty-one thousand, three hundred one".