13112022240 has 144 divisors (see below), whose sum is σ = 44830146816. Its totient is φ = 3489868800.

The previous prime is 13112022211. The next prime is 13112022251. The reversal of 13112022240 is 4222021131.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 770625 + ... + 787455.

It is an arithmetic number, because the mean of its divisors is an integer number (311320464).

Almost surely, 2^13112022240 is an apocalyptic number.

13112022240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13112022240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22415073408).

13112022240 is an abundant number, since it is smaller than the sum of its proper divisors (31718124576).

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

13112022240 is a wasteful number, since it uses less digits than its factorization.

13112022240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17393 (or 17382 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 13112022240 its reverse (4222021131), we get a palindrome (17334043371).

The spelling of 13112022240 in words is "thirteen billion, one hundred twelve million, twenty-two thousand, two hundred forty".