1101333320020 has 72 divisors (see below), whose sum is σ = 2443730260104. Its totient is φ = 416869085952.

The previous prime is 1101333320011. The next prime is 1101333320029. The reversal of 1101333320020 is 200233331011.

It is an interprime number because it is at equal distance from previous prime (1101333320011) and next prime (1101333320029).

It can be written as a sum of positive squares in 4 ways, for example, as 526675324176 + 574657995844 = 725724^2 + 758062^2 .

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 1101333320020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101333320029) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6244974 + ... + 6418906.

It is an arithmetic number, because the mean of its divisors is an integer number (33940698057).

Almost surely, 2^{1101333320020} is an apocalyptic number.

1101333320020 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 1101333320020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1221865130052).

1101333320020 is an abundant number, since it is smaller than the sum of its proper divisors (1342396940084).

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

1101333320020 is a wasteful number, since it uses less digits than its factorization.

1101333320020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174857 (or 174836 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 1101333320020 its reverse (200233331011), we get a palindrome (1301566651031).

The spelling of 1101333320020 in words is "one trillion, one hundred one billion, three hundred thirty-three million, three hundred twenty thousand, twenty".