11011331020 has 48 divisors (see below), whose sum is σ = 23238371520. Its totient is φ = 4382763264.

The previous prime is 11011330997. The next prime is 11011331027. The reversal of 11011331020 is 2013311011.

It is not an unprimeable number, because it can be changed into a prime (11011331027) 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, 4607986 + ... + 4610374.

It is an arithmetic number, because the mean of its divisors is an integer number (484132740).

Almost surely, 2^11011331020 is an apocalyptic number.

11011331020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11011331020 is an abundant number, since it is smaller than the sum of its proper divisors (12227040500).

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

11011331020 is a wasteful number, since it uses less digits than its factorization.

11011331020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3442 (or 3440 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 11011331020 its reverse (2013311011), we get a palindrome (13024642031).

The spelling of 11011331020 in words is "eleven billion, eleven million, three hundred thirty-one thousand, twenty".