13042122240 has 320 divisors, whose sum is σ = 48632601600. Its totient is φ = 2980454400.

The previous prime is 13042122229. The next prime is 13042122283. The reversal of 13042122240 is 4222124031.

It is a tau number, because it is divible by the number of its divisors (320).

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 2631765 + ... + 2636715.

It is an arithmetic number, because the mean of its divisors is an integer number (151976880).

Almost surely, 2^13042122240 is an apocalyptic number.

13042122240 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 13042122240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24316300800).

13042122240 is an abundant number, since it is smaller than the sum of its proper divisors (35590479360).

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

13042122240 is an frugal number, since it uses more digits than its factorization.

13042122240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4998 (or 4968 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 13042122240 its reverse (4222124031), we get a palindrome (17264246271).

The spelling of 13042122240 in words is "thirteen billion, forty-two million, one hundred twenty-two thousand, two hundred forty".