210010021129973 has 2 divisors, whose sum is σ = 210010021129974. Its totient is φ = 210010021129972.

The previous prime is 210010021129967. The next prime is 210010021130003. The reversal of 210010021129973 is 379921120010012.

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., 137915945912644 + 72094075217329 = 11743762^2 + 8490823^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210010021129973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210010021126973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105005010564986 + 105005010564987.

It is an arithmetic number, because the mean of its divisors is an integer number (105005010564987).

Almost surely, 2^{210010021129973} is an apocalyptic number.

It is an amenable number.

210010021129973 is a deficient number, since it is larger than the sum of its proper divisors (1).

210010021129973 is an equidigital number, since it uses as much as digits as its factorization.

210010021129973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 38.

Adding to 210010021129973 its reverse (379921120010012), we get a palindrome (589931141139985).

The spelling of 210010021129973 in words is "two hundred ten trillion, ten billion, twenty-one million, one hundred twenty-nine thousand, nine hundred seventy-three".