13431334356 has 96 divisors (see below), whose sum is σ = 38068531200. Its totient is φ = 4061432160.

The previous prime is 13431334339. The next prime is 13431334363. The reversal of 13431334356 is 65343313431.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 13431334356.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 557251 + ... + 580853.

It is an arithmetic number, because the mean of its divisors is an integer number (396547200).

Almost surely, 2^13431334356 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 13431334356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19034265600).

13431334356 is an abundant number, since it is smaller than the sum of its proper divisors (24637196844).

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

13431334356 is a wasteful number, since it uses less digits than its factorization.

13431334356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24106 (or 24098 counting only the distinct ones).

The product of its digits is 116640, while the sum is 36.

Adding to 13431334356 its reverse (65343313431), we get a palindrome (78774647787).

The spelling of 13431334356 in words is "thirteen billion, four hundred thirty-one million, three hundred thirty-four thousand, three hundred fifty-six".