111121142140 has 48 divisors (see below), whose sum is σ = 238371767424. Its totient is φ = 43493184000.

The previous prime is 111121142131. The next prime is 111121142147. The reversal of 111121142140 is 41241121111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111121142147) 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, 5518090 + ... + 5538190.

It is an arithmetic number, because the mean of its divisors is an integer number (4966078488).

Almost surely, 2^111121142140 is an apocalyptic number.

111121142140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111121142140 is an abundant number, since it is smaller than the sum of its proper divisors (127250625284).

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

111121142140 is a wasteful number, since it uses less digits than its factorization.

111121142140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26038 (or 26036 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 111121142140 its reverse (41241121111), we get a palindrome (152362263251).

The spelling of 111121142140 in words is "one hundred eleven billion, one hundred twenty-one million, one hundred forty-two thousand, one hundred forty".