111231130211 has 16 divisors (see below), whose sum is σ = 114742843488. Its totient is φ = 107785209600.

The previous prime is 111231130147. The next prime is 111231130267. The reversal of 111231130211 is 112031132111.

It is a cyclic number.

It is not a de Polignac number, because 111231130211 - 2⁶ = 111231130147 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111231130211.

It is not an unprimeable number, because it can be changed into a prime (111231130291) 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, 1134311 + ... + 1228463.

It is an arithmetic number, because the mean of its divisors is an integer number (7171427718).

Almost surely, 2^111231130211 is an apocalyptic number.

111231130211 is a deficient number, since it is larger than the sum of its proper divisors (3511713277).

111231130211 is a wasteful number, since it uses less digits than its factorization.

111231130211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94502.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 111231130211 its reverse (112031132111), we get a palindrome (223262262322).

The spelling of 111231130211 in words is "one hundred eleven billion, two hundred thirty-one million, one hundred thirty thousand, two hundred eleven".