210213301123 has 4 divisors (see below), whose sum is σ = 240243772720. Its totient is φ = 180182829528.

The previous prime is 210213301057. The next prime is 210213301139. The reversal of 210213301123 is 321103312012.

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

It is a cyclic number.

It is not a de Polignac number, because 210213301123 - 2⁹ = 210213300611 is a prime.

It is a super-2 number, since 2×210213301123² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 210213301123.

It is not an unprimeable number, because it can be changed into a prime (210213331123) 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, 15015235788 + ... + 15015235801.

It is an arithmetic number, because the mean of its divisors is an integer number (60060943180).

Almost surely, 2^210213301123 is an apocalyptic number.

210213301123 is a deficient number, since it is larger than the sum of its proper divisors (30030471597).

210213301123 is an equidigital number, since it uses as much as digits as its factorization.

210213301123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30030471596.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 210213301123 its reverse (321103312012), we get a palindrome (531316613135).

The spelling of 210213301123 in words is "two hundred ten billion, two hundred thirteen million, three hundred one thousand, one hundred twenty-three".