13112321464 has 64 divisors (see below), whose sum is σ = 28136678400. Its totient is φ = 5673494400.

The previous prime is 13112321437. The next prime is 13112321471. The reversal of 13112321464 is 46412321131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145009 + ... + 217375.

It is an arithmetic number, because the mean of its divisors is an integer number (439635600).

Almost surely, 2^13112321464 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 13112321464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14068339200).

13112321464 is an abundant number, since it is smaller than the sum of its proper divisors (15024356936).

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

13112321464 is a wasteful number, since it uses less digits than its factorization.

13112321464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72484 (or 72480 counting only the distinct ones).

The product of its digits is 3456, while the sum is 28.

Adding to 13112321464 its reverse (46412321131), we get a palindrome (59524642595).

The spelling of 13112321464 in words is "thirteen billion, one hundred twelve million, three hundred twenty-one thousand, four hundred sixty-four".