13214144012520 has 256 divisors, whose sum is σ = 43541638905600. Its totient is φ = 3181607976960.

The previous prime is 13214144012497. The next prime is 13214144012543. The reversal of 13214144012520 is 2521044141231.

It is an interprime number because it is at equal distance from previous prime (13214144012497) and next prime (13214144012543).

It is a super-2 number, since 2×13214144012520² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 149999046 + ... + 150087114.

It is an arithmetic number, because the mean of its divisors is an integer number (170084526975).

Almost surely, 2^{13214144012520} is an apocalyptic number.

13214144012520 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 13214144012520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21770819452800).

13214144012520 is an abundant number, since it is smaller than the sum of its proper divisors (30327494893080).

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

13214144012520 is a wasteful number, since it uses less digits than its factorization.

13214144012520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88868 (or 88864 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

Adding to 13214144012520 its reverse (2521044141231), we get a palindrome (15735188153751).

The spelling of 13214144012520 in words is "thirteen trillion, two hundred fourteen billion, one hundred forty-four million, twelve thousand, five hundred twenty".