13211115020 has 12 divisors (see below), whose sum is σ = 27743341584. Its totient is φ = 5284446000.

The previous prime is 13211114999. The next prime is 13211115023. The reversal of 13211115020 is 2051111231.

It is a self number, because there is not a number n which added to its sum of digits gives 13211115020.

It is not an unprimeable number, because it can be changed into a prime (13211115023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 330277856 + ... + 330277895.

It is an arithmetic number, because the mean of its divisors is an integer number (2311945132).

Almost surely, 2^13211115020 is an apocalyptic number.

13211115020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13211115020 is an abundant number, since it is smaller than the sum of its proper divisors (14532226564).

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

13211115020 is a wasteful number, since it uses less digits than its factorization.

13211115020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660555760 (or 660555758 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 17.

Adding to 13211115020 its reverse (2051111231), we get a palindrome (15262226251).

The spelling of 13211115020 in words is "thirteen billion, two hundred eleven million, one hundred fifteen thousand, twenty".