11121312002020 has 96 divisors (see below), whose sum is σ = 25852126188672. Its totient is φ = 3985094400000.

The previous prime is 11121312001993. The next prime is 11121312002041. The reversal of 11121312002020 is 2020021312111.

It is a super-3 number, since 3×11121312002020³ (a number of 40 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11121312001985 and 11121312002003.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3502380 + ... + 5874460.

It is an arithmetic number, because the mean of its divisors is an integer number (269292981132).

Almost surely, 2^{11121312002020} is an apocalyptic number.

11121312002020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11121312002020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12926063094336).

11121312002020 is an abundant number, since it is smaller than the sum of its proper divisors (14730814186652).

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

11121312002020 is a wasteful number, since it uses less digits than its factorization.

11121312002020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2372413 (or 2372411 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 11121312002020 its reverse (2020021312111), we get a palindrome (13141333314131).

The spelling of 11121312002020 in words is "eleven trillion, one hundred twenty-one billion, three hundred twelve million, two thousand, twenty".