111051231140 has 96 divisors (see below), whose sum is σ = 237640265856. Its totient is φ = 43586150400.

The previous prime is 111051231121. The next prime is 111051231253. The reversal of 111051231140 is 41132150111.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 172707659 + ... + 172708301.

It is an arithmetic number, because the mean of its divisors is an integer number (2475419436).

Almost surely, 2^111051231140 is an apocalyptic number.

111051231140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111051231140 is an abundant number, since it is smaller than the sum of its proper divisors (126589034716).

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

111051231140 is a wasteful number, since it uses less digits than its factorization.

111051231140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1389 (or 1387 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 20.

Adding to 111051231140 its reverse (41132150111), we get a palindrome (152183381251).

The spelling of 111051231140 in words is "one hundred eleven billion, fifty-one million, two hundred thirty-one thousand, one hundred forty".