11001131211020 has 24 divisors (see below), whose sum is σ = 23108047792704. Its totient is φ = 4399372055936.

The previous prime is 11001131210977. The next prime is 11001131211023. The reversal of 11001131211020 is 2011213110011.

It is a junction number, because it is equal to n+sod(n) for n = 11001131210986 and 11001131211004.

It is not an unprimeable number, because it can be changed into a prime (11001131211023) 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, 67443284 + ... + 67606203.

It is an arithmetic number, because the mean of its divisors is an integer number (962835324696).

Almost surely, 2^{11001131211020} is an apocalyptic number.

11001131211020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11001131211020 is an abundant number, since it is smaller than the sum of its proper divisors (12106916581684).

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

11001131211020 is a wasteful number, since it uses less digits than its factorization.

11001131211020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135053569 (or 135053567 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 11001131211020 its reverse (2011213110011), we get a palindrome (13012344321031).

The spelling of 11001131211020 in words is "eleven trillion, one billion, one hundred thirty-one million, two hundred eleven thousand, twenty".