1111112131230 has 48 divisors (see below), whose sum is σ = 2891119209264. Its totient is φ = 296068089600.

The previous prime is 1111112131219. The next prime is 1111112131249. The reversal of 1111112131230 is 321312111111.

1111112131230 is a `hidden beast` number, since 111 + 111 + 213 + 1 + 230 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4642596 + ... + 4876055.

It is an arithmetic number, because the mean of its divisors is an integer number (60231650193).

Almost surely, 2^{1111112131230} is an apocalyptic number.

1111112131230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1111112131230 is an abundant number, since it is smaller than the sum of its proper divisors (1780007078034).

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

1111112131230 is a wasteful number, since it uses less digits than its factorization.

1111112131230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9519961 (or 9519958 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

Adding to 1111112131230 its reverse (321312111111), we get a palindrome (1432424242341).

The spelling of 1111112131230 in words is "one trillion, one hundred eleven billion, one hundred twelve million, one hundred thirty-one thousand, two hundred thirty".