210121341203 has 4 divisors (see below), whose sum is σ = 210360933120. Its totient is φ = 209881749288.

The previous prime is 210121341193. The next prime is 210121341223. The reversal of 210121341203 is 302143121012.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210121341203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210121341223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119794643 + ... + 119796396.

It is an arithmetic number, because the mean of its divisors is an integer number (52590233280).

Almost surely, 2^210121341203 is an apocalyptic number.

210121341203 is a deficient number, since it is larger than the sum of its proper divisors (239591917).

210121341203 is an equidigital number, since it uses as much as digits as its factorization.

210121341203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239591916.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 210121341203 its reverse (302143121012), we get a palindrome (512264462215).

The spelling of 210121341203 in words is "two hundred ten billion, one hundred twenty-one million, three hundred forty-one thousand, two hundred three".