210143130442321 has 4 divisors (see below), whose sum is σ = 214614260877312. Its totient is φ = 205672000007332.

The previous prime is 210143130442247. The next prime is 210143130442367. The reversal of 210143130442321 is 123244031341012.

It is a happy number.

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 not a de Polignac number, because 210143130442321 - 2⁴¹ = 207944107186769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210143130442381) 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, 2235565217425 + ... + 2235565217518.

It is an arithmetic number, because the mean of its divisors is an integer number (53653565219328).

Almost surely, 2^{210143130442321} is an apocalyptic number.

It is an amenable number.

210143130442321 is a deficient number, since it is larger than the sum of its proper divisors (4471130434991).

210143130442321 is an equidigital number, since it uses as much as digits as its factorization.

210143130442321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4471130434990.

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 210143130442321 its reverse (123244031341012), we get a palindrome (333387161783333).

The spelling of 210143130442321 in words is "two hundred ten trillion, one hundred forty-three billion, one hundred thirty million, four hundred forty-two thousand, three hundred twenty-one".