210115020223 has 4 divisors (see below), whose sum is σ = 211648706640. Its totient is φ = 208581333808.

The previous prime is 210115020169. The next prime is 210115020239. The reversal of 210115020223 is 322020511012.

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 210115020223 - 2¹⁷ = 210114889151 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 210115020223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210115020253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 766843003 + ... + 766843276.

It is an arithmetic number, because the mean of its divisors is an integer number (52912176660).

Almost surely, 2^210115020223 is an apocalyptic number.

210115020223 is a deficient number, since it is larger than the sum of its proper divisors (1533686417).

210115020223 is a wasteful number, since it uses less digits than its factorization.

210115020223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1533686416.

The product of its (nonzero) digits is 240, while the sum is 19.

Adding to 210115020223 its reverse (322020511012), we get a palindrome (532135531235).

The spelling of 210115020223 in words is "two hundred ten billion, one hundred fifteen million, twenty thousand, two hundred twenty-three".