111000134231 has 4 divisors (see below), whose sum is σ = 126857296272. Its totient is φ = 95142972192.

The previous prime is 111000134173. The next prime is 111000134293. The reversal of 111000134231 is 132431000111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 111000134231 - 2¹⁰ = 111000133207 is a prime.

It is a super-2 number, since 2×111000134231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111000154231) 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, 7928581010 + ... + 7928581023.

It is an arithmetic number, because the mean of its divisors is an integer number (31714324068).

Almost surely, 2^111000134231 is an apocalyptic number.

111000134231 is a deficient number, since it is larger than the sum of its proper divisors (15857162041).

111000134231 is an equidigital number, since it uses as much as digits as its factorization.

111000134231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15857162040.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 111000134231 its reverse (132431000111), we get a palindrome (243431134342).

The spelling of 111000134231 in words is "one hundred eleven billion, one hundred thirty-four thousand, two hundred thirty-one".