111111230131 has 8 divisors (see below), whose sum is σ = 121218836400. Its totient is φ = 101004721440.

The previous prime is 111111230129. The next prime is 111111230137. The reversal of 111111230131 is 131032111111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111111230131 - 2¹ = 111111230129 is a prime.

It is a super-2 number, since 2×111111230131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111111230137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55096 + ... + 474613.

It is an arithmetic number, because the mean of its divisors is an integer number (15152354550).

Almost surely, 2^111111230131 is an apocalyptic number.

111111230131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

111111230131 is a deficient number, since it is larger than the sum of its proper divisors (10107606269).

111111230131 is a wasteful number, since it uses less digits than its factorization.

111111230131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548789.

The product of its (nonzero) digits is 18, while the sum is 16.

Adding to 111111230131 its reverse (131032111111), we get a palindrome (242143341242).

The spelling of 111111230131 in words is "one hundred eleven billion, one hundred eleven million, two hundred thirty thousand, one hundred thirty-one".