210031301213 has 4 divisors (see below), whose sum is σ = 210287125788. Its totient is φ = 209775476640.

The previous prime is 210031301177. The next prime is 210031301239. The reversal of 210031301213 is 312103130012.

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 24444384409 + 185586916804 = 156347^2 + 430798^2 .

It is a cyclic number.

It is not a de Polignac number, because 210031301213 - 2¹⁴ = 210031284829 is a prime.

It is a super-2 number, since 2×210031301213² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210031301191 and 210031301200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210031361213) 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, 127911056 + ... + 127912697.

It is an arithmetic number, because the mean of its divisors is an integer number (52571781447).

Almost surely, 2^210031301213 is an apocalyptic number.

It is an amenable number.

210031301213 is a deficient number, since it is larger than the sum of its proper divisors (255824575).

210031301213 is an equidigital number, since it uses as much as digits as its factorization.

210031301213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255824574.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 210031301213 its reverse (312103130012), we get a palindrome (522134431225).

The spelling of 210031301213 in words is "two hundred ten billion, thirty-one million, three hundred one thousand, two hundred thirteen".