1113070820 has 12 divisors (see below), whose sum is σ = 2337448764. Its totient is φ = 445228320.

The previous prime is 1113070793. The next prime is 1113070823. The reversal of 1113070820 is 280703111.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 167754304 + 945316516 = 12952^2 + 30746^2 .

It is not an unprimeable number, because it can be changed into a prime (1113070823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27826751 + ... + 27826790.

It is an arithmetic number, because the mean of its divisors is an integer number (194787397).

Almost surely, 2^1113070820 is an apocalyptic number.

1113070820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1113070820 is an abundant number, since it is smaller than the sum of its proper divisors (1224377944).

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

1113070820 is a wasteful number, since it uses less digits than its factorization.

1113070820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55653550 (or 55653548 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 23.

The square root of 1113070820 is about 33362.7160165356. The cubic root of 1113070820 is about 1036.3527381219.

Adding to 1113070820 its reverse (280703111), we get a palindrome (1393773931).

The spelling of 1113070820 in words is "one billion, one hundred thirteen million, seventy thousand, eight hundred twenty".