111211432134 has 128 divisors (see below), whose sum is σ = 260525859840. Its totient is φ = 31304908800.

The previous prime is 111211432121. The next prime is 111211432183. The reversal of 111211432134 is 431234112111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 36000862 + ... + 36003950.

It is an arithmetic number, because the mean of its divisors is an integer number (2035358280).

Almost surely, 2^111211432134 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111211432134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130262929920).

111211432134 is an abundant number, since it is smaller than the sum of its proper divisors (149314427706).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111211432134 is a wasteful number, since it uses less digits than its factorization.

111211432134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3806.

The product of its digits is 576, while the sum is 24.

Adding to 111211432134 its reverse (431234112111), we get a palindrome (542445544245).

It can be divided in two parts, 111211 and 432134, that added together give a palindrome (543345).

The spelling of 111211432134 in words is "one hundred eleven billion, two hundred eleven million, four hundred thirty-two thousand, one hundred thirty-four".