13211004020 has 96 divisors (see below), whose sum is σ = 29193163776. Its totient is φ = 5015808000.

The previous prime is 13211003999. The next prime is 13211004041. The reversal of 13211004020 is 2040011231.

It is an interprime number because it is at equal distance from previous prime (13211003999) and next prime (13211004041).

It is a junction number, because it is equal to n+sod(n) for n = 13211003986 and 13211004004.

It is a congruent number.

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, 7075127 + ... + 7076993.

It is an arithmetic number, because the mean of its divisors is an integer number (304095456).

Almost surely, 2^13211004020 is an apocalyptic number.

13211004020 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 13211004020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14596581888).

13211004020 is an abundant number, since it is smaller than the sum of its proper divisors (15982159756).

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

13211004020 is a wasteful number, since it uses less digits than its factorization.

13211004020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2121 (or 2119 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 13211004020 its reverse (2040011231), we get a palindrome (15251015251).

The spelling of 13211004020 in words is "thirteen billion, two hundred eleven million, four thousand, twenty".