210143021313013 has 4 divisors (see below), whose sum is σ = 210145602338188. Its totient is φ = 210140440287840.

The previous prime is 210143021312969. The next prime is 210143021313023. The reversal of 210143021313013 is 310313120341012.

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 206496842520004 + 3646178793009 = 14369998^2 + 1909497^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210143021313013 is a prime.

It is a super-2 number, since 2×210143021313013² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210143021313023) 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, 1290390456 + ... + 1290553297.

It is an arithmetic number, because the mean of its divisors is an integer number (52536400584547).

Almost surely, 2^{210143021313013} is an apocalyptic number.

It is an amenable number.

210143021313013 is a deficient number, since it is larger than the sum of its proper divisors (2581025175).

210143021313013 is an equidigital number, since it uses as much as digits as its factorization.

210143021313013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2581025174.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 210143021313013 its reverse (310313120341012), we get a palindrome (520456141654025).

The spelling of 210143021313013 in words is "two hundred ten trillion, one hundred forty-three billion, twenty-one million, three hundred thirteen thousand, thirteen".