211031121003313 has 16 divisors (see below), whose sum is σ = 228295307256016. Its totient is φ = 193914847272960.

The previous prime is 211031121003299. The next prime is 211031121003343. The reversal of 211031121003313 is 313300121130112.

It can be written as a sum of positive squares in 8 ways, for example, as 4564598066064 + 206466522937249 = 2136492^2 + 14368943^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211031121003313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (211031121003343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4864470 + ... + 21112207.

It is an arithmetic number, because the mean of its divisors is an integer number (14268456703501).

Almost surely, 2^{211031121003313} is an apocalyptic number.

It is an amenable number.

211031121003313 is a deficient number, since it is larger than the sum of its proper divisors (17264186252703).

211031121003313 is a wasteful number, since it uses less digits than its factorization.

211031121003313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25979524.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 211031121003313 its reverse (313300121130112), we get a palindrome (524331242133425).

The spelling of 211031121003313 in words is "two hundred eleven trillion, thirty-one billion, one hundred twenty-one million, three thousand, three hundred thirteen".