111230131111 has 16 divisors (see below), whose sum is σ = 126644767488. Its totient is φ = 96701176000.

The previous prime is 111230131093. The next prime is 111230131123. The reversal of 111230131111 is 111131032111.

It is not a de Polignac number, because 111230131111 - 2⁷ = 111230130983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111230131811) 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, 1204536 + ... + 1293586.

It is an arithmetic number, because the mean of its divisors is an integer number (7915297968).

Almost surely, 2^111230131111 is an apocalyptic number.

111230131111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

111230131111 is a deficient number, since it is larger than the sum of its proper divisors (15414636377).

111230131111 is a wasteful number, since it uses less digits than its factorization.

111230131111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94022.

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

Adding to 111230131111 its reverse (111131032111), we get a palindrome (222361163222).

The spelling of 111230131111 in words is "one hundred eleven billion, two hundred thirty million, one hundred thirty-one thousand, one hundred eleven".