13214501920 has 96 divisors (see below), whose sum is σ = 32335329600. Its totient is φ = 5097286656.

The previous prime is 13214501893. The next prime is 13214501921. The reversal of 13214501920 is 2910541231.

It is not an unprimeable number, because it can be changed into a prime (13214501921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6063391 + ... + 6065569.

It is an arithmetic number, because the mean of its divisors is an integer number (336826350).

Almost surely, 2^13214501920 is an apocalyptic number.

13214501920 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 13214501920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16167664800).

13214501920 is an abundant number, since it is smaller than the sum of its proper divisors (19120827680).

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

13214501920 is a wasteful number, since it uses less digits than its factorization.

13214501920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3530 (or 3522 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 28.

The spelling of 13214501920 in words is "thirteen billion, two hundred fourteen million, five hundred one thousand, nine hundred twenty".