13211324020 has 24 divisors (see below), whose sum is σ = 27748786464. Its totient is φ = 5283576096.

The previous prime is 13211324003. The next prime is 13211324023. The reversal of 13211324020 is 2042311231.

It is a happy number.

It is a super-2 number, since 2×13211324020² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13211324023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59859 + ... + 173221.

It is an arithmetic number, because the mean of its divisors is an integer number (1156199436).

Almost surely, 2^13211324020 is an apocalyptic number.

13211324020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13211324020 is an abundant number, since it is smaller than the sum of its proper divisors (14537462444).

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

13211324020 is a wasteful number, since it uses less digits than its factorization.

13211324020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119199 (or 119197 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 13211324020 its reverse (2042311231), we get a palindrome (15253635251).

The spelling of 13211324020 in words is "thirteen billion, two hundred eleven million, three hundred twenty-four thousand, twenty".