13311997248 has 224 divisors, whose sum is σ = 39923435520. Its totient is φ = 3879485440.

The previous prime is 13311997241. The next prime is 13311997289. The reversal of 13311997248 is 84279911331.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 13311997197 and 13311997206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13311997241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5855440 + ... + 5857712.

Almost surely, 2^13311997248 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 13311997248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19961717760).

13311997248 is an abundant number, since it is smaller than the sum of its proper divisors (26611438272).

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

13311997248 is a wasteful number, since it uses less digits than its factorization.

13311997248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2405 (or 2395 counting only the distinct ones).

The product of its digits is 326592, while the sum is 48.

The spelling of 13311997248 in words is "thirteen billion, three hundred eleven million, nine hundred ninety-seven thousand, two hundred forty-eight".