11042118820 has 24 divisors (see below), whose sum is σ = 23344083000. Its totient is φ = 4387203072.

The previous prime is 11042118799. The next prime is 11042118821. The reversal of 11042118820 is 2881124011.

It can be written as a sum of positive squares in 4 ways, for example, as 732736 + 11041386084 = 856^2 + 105078^2 .

It is not an unprimeable number, because it can be changed into a prime (11042118821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1849725 + ... + 1855684.

It is an arithmetic number, because the mean of its divisors is an integer number (972670125).

Almost surely, 2^11042118820 is an apocalyptic number.

11042118820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11042118820 is an abundant number, since it is smaller than the sum of its proper divisors (12301964180).

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

11042118820 is a wasteful number, since it uses less digits than its factorization.

11042118820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3705567 (or 3705565 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 28.

The spelling of 11042118820 in words is "eleven billion, forty-two million, one hundred eighteen thousand, eight hundred twenty".