1111244140 has 24 divisors (see below), whose sum is σ = 2337108480. Its totient is φ = 443831808.

The previous prime is 1111244131. The next prime is 1111244143. The reversal of 1111244140 is 414421111.

It is not an unprimeable number, because it can be changed into a prime (1111244143) 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, 27820 + ... + 54739.

It is an arithmetic number, because the mean of its divisors is an integer number (97379520).

Almost surely, 2^1111244140 is an apocalyptic number.

1111244140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1111244140 is an abundant number, since it is smaller than the sum of its proper divisors (1225864340).

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

1111244140 is a wasteful number, since it uses less digits than its factorization.

1111244140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83241 (or 83239 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 1111244140 is about 33335.3287069439. The cubic root of 1111244140 is about 1035.7855021705.

Adding to 1111244140 its reverse (414421111), we get a palindrome (1525665251).

The spelling of 1111244140 in words is "one billion, one hundred eleven million, two hundred forty-four thousand, one hundred forty".