210320211121253 has 2 divisors, whose sum is σ = 210320211121254. Its totient is φ = 210320211121252.

The previous prime is 210320211121249. The next prime is 210320211121303. The reversal of 210320211121253 is 352121112023012.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 210317778461569 + 2432659684 = 14502337^2 + 49322^2 .

It is a cyclic number.

It is not a de Polignac number, because 210320211121253 - 2² = 210320211121249 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210320211129253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105160105560626 + 105160105560627.

It is an arithmetic number, because the mean of its divisors is an integer number (105160105560627).

Almost surely, 2^{210320211121253} is an apocalyptic number.

It is an amenable number.

210320211121253 is a deficient number, since it is larger than the sum of its proper divisors (1).

210320211121253 is an equidigital number, since it uses as much as digits as its factorization.

210320211121253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 26.

Adding to 210320211121253 its reverse (352121112023012), we get a palindrome (562441323144265).

The spelling of 210320211121253 in words is "two hundred ten trillion, three hundred twenty billion, two hundred eleven million, one hundred twenty-one thousand, two hundred fifty-three".