1120231320 has 256 divisors, whose sum is σ = 3909306240. Its totient is φ = 254312448.

The previous prime is 1120231309. The next prime is 1120231331. The reversal of 1120231320 is 231320211.

It is an interprime number because it is at equal distance from previous prime (1120231309) and next prime (1120231331).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1120231320.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1405162 + ... + 1405958.

Almost surely, 2^1120231320 is an apocalyptic number.

1120231320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1120231320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1954653120).

1120231320 is an abundant number, since it is smaller than the sum of its proper divisors (2789074920).

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

1120231320 is a wasteful number, since it uses less digits than its factorization.

1120231320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 894 (or 890 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1120231320 is about 33469.8568864583. The cubic root of 1120231320 is about 1038.5703111472.

Adding to 1120231320 its reverse (231320211), we get a palindrome (1351551531).

The spelling of 1120231320 in words is "one billion, one hundred twenty million, two hundred thirty-one thousand, three hundred twenty".