210121103002113 has 12 divisors (see below), whose sum is σ = 303623530818660. Its totient is φ = 140027533368576.

The previous prime is 210121103002103. The next prime is 210121103002189. The reversal of 210121103002113 is 311200301121012.

210121103002113 is a `hidden beast` number, since 21 + 0 + 121 + 10 + 300 + 211 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 36677655339264 + 173443447662849 = 6056208^2 + 13169793^2 .

It is not a de Polignac number, because 210121103002113 - 2²⁰ = 210121101953537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (210121103002103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4433472168 + ... + 4433519561.

It is an arithmetic number, because the mean of its divisors is an integer number (25301960901555).

Almost surely, 2^{210121103002113} is an apocalyptic number.

It is an amenable number.

210121103002113 is a deficient number, since it is larger than the sum of its proper divisors (93502427816547).

210121103002113 is a wasteful number, since it uses less digits than its factorization.

210121103002113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8866994368 (or 8866994365 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 210121103002113 its reverse (311200301121012), we get a palindrome (521321404123125).

The spelling of 210121103002113 in words is "two hundred ten trillion, one hundred twenty-one billion, one hundred three million, two thousand, one hundred thirteen".