1111244020 has 48 divisors (see below), whose sum is σ = 2371299840. Its totient is φ = 437359104.

The previous prime is 1111244009. The next prime is 1111244023. The reversal of 1111244020 is 204421111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1111243985 and 1111244003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111244023) 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, 531417 + ... + 533503.

It is an arithmetic number, because the mean of its divisors is an integer number (49402080).

Almost surely, 2^1111244020 is an apocalyptic number.

1111244020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1111244020 is an abundant number, since it is smaller than the sum of its proper divisors (1260055820).

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

1111244020 is a wasteful number, since it uses less digits than its factorization.

1111244020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2512 (or 2510 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 1111244020 is about 33335.3269070516. The cubic root of 1111244020 is about 1035.7854648867.

Adding to 1111244020 its reverse (204421111), we get a palindrome (1315665131).

The spelling of 1111244020 in words is "one billion, one hundred eleven million, two hundred forty-four thousand, twenty".