210353313121 has 4 divisors (see below), whose sum is σ = 240403786432. Its totient is φ = 180302839812.

The previous prime is 210353313119. The next prime is 210353313139. The reversal of 210353313121 is 121313353012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 210353313121 - 2¹ = 210353313119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210353353121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15025236645 + ... + 15025236658.

It is an arithmetic number, because the mean of its divisors is an integer number (60100946608).

Almost surely, 2^210353313121 is an apocalyptic number.

It is an amenable number.

210353313121 is a deficient number, since it is larger than the sum of its proper divisors (30050473311).

210353313121 is an equidigital number, since it uses as much as digits as its factorization.

210353313121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30050473310.

The product of its (nonzero) digits is 1620, while the sum is 25.

Adding to 210353313121 its reverse (121313353012), we get a palindrome (331666666133).

The spelling of 210353313121 in words is "two hundred ten billion, three hundred fifty-three million, three hundred thirteen thousand, one hundred twenty-one".