210213120223013 has 4 divisors (see below), whose sum is σ = 210972012354060. Its totient is φ = 209454228091968.

The previous prime is 210213120222977. The next prime is 210213120223063. The reversal of 210213120223013 is 310322021312012.

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

It can be written as a sum of positive squares in 2 ways, for example, as 28995403328644 + 181217716894369 = 5384738^2 + 13461713^2 .

It is a cyclic number.

It is not a de Polignac number, because 210213120223013 - 2¹² = 210213120218917 is a prime.

It is a super-2 number, since 2×210213120223013² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 210213120223013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210213120223063) 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, 379446065108 + ... + 379446065661.

It is an arithmetic number, because the mean of its divisors is an integer number (52743003088515).

Almost surely, 2^{210213120223013} is an apocalyptic number.

It is an amenable number.

210213120223013 is a deficient number, since it is larger than the sum of its proper divisors (758892131047).

210213120223013 is an equidigital number, since it uses as much as digits as its factorization.

210213120223013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 758892131046.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 210213120223013 its reverse (310322021312012), we get a palindrome (520535141535025).

The spelling of 210213120223013 in words is "two hundred ten trillion, two hundred thirteen billion, one hundred twenty million, two hundred twenty-three thousand, thirteen".