2013213020 has 144 divisors (see below), whose sum is σ = 5575721760. Its totient is φ = 603542016.

The previous prime is 2013212989. The next prime is 2013213029. The reversal of 2013213020 is 203123102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 2013212986 and 2013213004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2013213029) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 237902 + ... + 246218.

It is an arithmetic number, because the mean of its divisors is an integer number (38720290).

Almost surely, 2^2013213020 is an apocalyptic number.

2013213020 is a gapful number since it is divisible by the number (20) 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 2013213020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2787860880).

2013213020 is an abundant number, since it is smaller than the sum of its proper divisors (3562508740).

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

2013213020 is a wasteful number, since it uses less digits than its factorization.

2013213020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8372 (or 8363 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 2013213020 is about 44868.8424187654. The cubic root of 2013213020 is about 1262.6895225071.

Adding to 2013213020 its reverse (203123102), we get a palindrome (2216336122).

The spelling of 2013213020 in words is "two billion, thirteen million, two hundred thirteen thousand, twenty".