11031282820 has 12 divisors (see below), whose sum is σ = 23165693964. Its totient is φ = 4412513120.

The previous prime is 11031282811. The next prime is 11031282853. The reversal of 11031282820 is 2828213011.

It can be written as a sum of positive squares in 2 ways, for example, as 7229080576 + 3802202244 = 85024^2 + 61662^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 275782051 + ... + 275782090.

It is an arithmetic number, because the mean of its divisors is an integer number (1930474497).

Almost surely, 2^11031282820 is an apocalyptic number.

11031282820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11031282820 is an abundant number, since it is smaller than the sum of its proper divisors (12134411144).

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

11031282820 is a wasteful number, since it uses less digits than its factorization.

11031282820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551564150 (or 551564148 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 28.

Adding to 11031282820 its reverse (2828213011), we get a palindrome (13859495831).

The spelling of 11031282820 in words is "eleven billion, thirty-one million, two hundred eighty-two thousand, eight hundred twenty".