211401112231 has 16 divisors (see below), whose sum is σ = 228214533024. Its totient is φ = 195105659904.

The previous prime is 211401112193. The next prime is 211401112267. The reversal of 211401112231 is 132211104112.

It is a cyclic number.

It is not a de Polignac number, because 211401112231 - 2²⁹ = 210864241319 is a prime.

It is a super-2 number, since 2×211401112231² (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 = 211401112199 and 211401112208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211401112271) 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, 277641 + ... + 707026.

It is an arithmetic number, because the mean of its divisors is an integer number (14263408314).

Almost surely, 2^211401112231 is an apocalyptic number.

211401112231 is a deficient number, since it is larger than the sum of its proper divisors (16813420793).

211401112231 is a wasteful number, since it uses less digits than its factorization.

211401112231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 984930.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 211401112231 its reverse (132211104112), we get a palindrome (343612216343).

The spelling of 211401112231 in words is "two hundred eleven billion, four hundred one million, one hundred twelve thousand, two hundred thirty-one".