11020000561 has 16 divisors (see below), whose sum is σ = 11398121280. Its totient is φ = 10646303040.

The previous prime is 11020000531. The next prime is 11020000583. The reversal of 11020000561 is 16500002011.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-11020000561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11020000501) 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, 8430870 + ... + 8432176.

It is an arithmetic number, because the mean of its divisors is an integer number (712382580).

Almost surely, 2^11020000561 is an apocalyptic number.

It is an amenable number.

11020000561 is a deficient number, since it is larger than the sum of its proper divisors (378120719).

11020000561 is a wasteful number, since it uses less digits than its factorization.

11020000561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2784.

The product of its (nonzero) digits is 60, while the sum is 16.

Adding to 11020000561 its reverse (16500002011), we get a palindrome (27520002572).

The spelling of 11020000561 in words is "eleven billion, twenty million, five hundred sixty-one", and thus it is an aban number.