13401243312 has 20 divisors (see below), whose sum is σ = 34619878680. Its totient is φ = 4467081088.

The previous prime is 13401243311. The next prime is 13401243347. The reversal of 13401243312 is 21334210431.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (13401243311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139596237 + ... + 139596332.

It is an arithmetic number, because the mean of its divisors is an integer number (1730993934).

Almost surely, 2^13401243312 is an apocalyptic number.

13401243312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13401243312 is an abundant number, since it is smaller than the sum of its proper divisors (21218635368).

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

13401243312 is a wasteful number, since it uses less digits than its factorization.

13401243312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279192580 (or 279192574 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 13401243312 its reverse (21334210431), we get a palindrome (34735453743).

The spelling of 13401243312 in words is "thirteen billion, four hundred one million, two hundred forty-three thousand, three hundred twelve".