211011013012321 has 8 divisors (see below), whose sum is σ = 215025081558120. Its totient is φ = 206998156639872.

The previous prime is 211011013012313. The next prime is 211011013012343. The reversal of 211011013012321 is 123210310110112.

It can be written as a sum of positive squares in 4 ways, for example, as 31185299984400 + 179825713027921 = 5584380^2 + 13409911^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 211011013012321 - 2³ = 211011013012313 is a prime.

It is a super-2 number, since 2×211011013012321² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211011013022321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 302691870 + ... + 303388183.

It is an arithmetic number, because the mean of its divisors is an integer number (26878135194765).

Almost surely, 2^{211011013012321} is an apocalyptic number.

It is an amenable number.

211011013012321 is a deficient number, since it is larger than the sum of its proper divisors (4014068545799).

211011013012321 is an equidigital number, since it uses as much as digits as its factorization.

211011013012321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606086675.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 211011013012321 its reverse (123210310110112), we get a palindrome (334221323122433).

The spelling of 211011013012321 in words is "two hundred eleven trillion, eleven billion, thirteen million, twelve thousand, three hundred twenty-one".