13212140031424 has 56 divisors (see below), whose sum is σ = 26641490438528. Its totient is φ = 6499563206400.

The previous prime is 13212140031383. The next prime is 13212140031439. The reversal of 13212140031424 is 42413004121231.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 13212140031392 and 13212140031401.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1657099 + ... + 5400949.

It is an arithmetic number, because the mean of its divisors is an integer number (475740900688).

Almost surely, 2^{13212140031424} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13212140031424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13320745219264).

13212140031424 is an abundant number, since it is smaller than the sum of its proper divisors (13429350407104).

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

13212140031424 is an equidigital number, since it uses as much as digits as its factorization.

13212140031424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3744753 (or 3744743 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 13212140031424 its reverse (42413004121231), we get a palindrome (55625144152655).

The spelling of 13212140031424 in words is "thirteen trillion, two hundred twelve billion, one hundred forty million, thirty-one thousand, four hundred twenty-four".