1120827309 has 16 divisors (see below), whose sum is σ = 1797818880. Its totient is φ = 606763440.

The previous prime is 1120827287. The next prime is 1120827317. The reversal of 1120827309 is 9037280211.

It is not a de Polignac number, because 1120827309 - 2¹² = 1120823213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1120827309.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120827109) 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, 1404147 + ... + 1404944.

It is an arithmetic number, because the mean of its divisors is an integer number (112363680).

Almost surely, 2^1120827309 is an apocalyptic number.

1120827309 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1120827309 is a deficient number, since it is larger than the sum of its proper divisors (676991571).

1120827309 is a wasteful number, since it uses less digits than its factorization.

1120827309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2809120.

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 1120827309 is about 33478.7590719847. The cubic root of 1120827309 is about 1038.7544596448.

The spelling of 1120827309 in words is "one billion, one hundred twenty million, eight hundred twenty-seven thousand, three hundred nine".