210011203111321 has 2 divisors, whose sum is σ = 210011203111322. Its totient is φ = 210011203111320.

The previous prime is 210011203111273. The next prime is 210011203111421. The reversal of 210011203111321 is 123111302110012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 175994185038400 + 34017018072921 = 13266280^2 + 5832411^2 .

It is a cyclic number.

It is not a de Polignac number, because 210011203111321 - 2³⁹ = 209461447297433 is a prime.

It is not a weakly prime, because it can be changed into another prime (210011203111421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105005601555660 + 105005601555661.

It is an arithmetic number, because the mean of its divisors is an integer number (105005601555661).

Almost surely, 2^{210011203111321} is an apocalyptic number.

It is an amenable number.

210011203111321 is a deficient number, since it is larger than the sum of its proper divisors (1).

210011203111321 is an equidigital number, since it uses as much as digits as its factorization.

210011203111321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 210011203111321 its reverse (123111302110012), we get a palindrome (333122505221333).

The spelling of 210011203111321 in words is "two hundred ten trillion, eleven billion, two hundred three million, one hundred eleven thousand, three hundred twenty-one".