11301021020 has 96 divisors (see below), whose sum is σ = 26966822400. Its totient is φ = 3954956544.

The previous prime is 11301021013. The next prime is 11301021029. The reversal of 11301021020 is 2012010311.

It is a junction number, because it is equal to n+sod(n) for n = 11301020992 and 11301021010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11301021029) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 231167 + ... + 275753.

It is an arithmetic number, because the mean of its divisors is an integer number (280904400).

Almost surely, 2^11301021020 is an apocalyptic number.

11301021020 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 11301021020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13483411200).

11301021020 is an abundant number, since it is smaller than the sum of its proper divisors (15665801380).

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

11301021020 is a wasteful number, since it uses less digits than its factorization.

11301021020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44667 (or 44665 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 11301021020 its reverse (2012010311), we get a palindrome (13313031331).

The spelling of 11301021020 in words is "eleven billion, three hundred one million, twenty-one thousand, twenty".