211112514321 has 4 divisors (see below), whose sum is σ = 281483352432. Its totient is φ = 140741676212.

The previous prime is 211112514191. The next prime is 211112514343. The reversal of 211112514321 is 123415211112.

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 a cyclic number.

It is not a de Polignac number, because 211112514321 - 2¹⁵ = 211112481553 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 211112514291 and 211112514300.

It is not an unprimeable number, because it can be changed into a prime (211112514391) 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, 35185419051 + ... + 35185419056.

It is an arithmetic number, because the mean of its divisors is an integer number (70370838108).

Almost surely, 2^211112514321 is an apocalyptic number.

It is an amenable number.

211112514321 is a deficient number, since it is larger than the sum of its proper divisors (70370838111).

211112514321 is an equidigital number, since it uses as much as digits as its factorization.

211112514321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70370838110.

The product of its digits is 480, while the sum is 24.

Adding to 211112514321 its reverse (123415211112), we get a palindrome (334527725433).

The spelling of 211112514321 in words is "two hundred eleven billion, one hundred twelve million, five hundred fourteen thousand, three hundred twenty-one".