13033431240 has 64 divisors (see below), whose sum is σ = 39275712000. Its totient is φ = 3459988992.

The previous prime is 13033431239. The next prime is 13033431317. The reversal of 13033431240 is 4213433031.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 13033431240.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 216765 + ... + 270284.

It is an arithmetic number, because the mean of its divisors is an integer number (613683000).

Almost surely, 2^13033431240 is an apocalyptic number.

13033431240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13033431240 is an abundant number, since it is smaller than the sum of its proper divisors (26242280760).

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

13033431240 is a wasteful number, since it uses less digits than its factorization.

13033431240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487286 (or 487282 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 13033431240 its reverse (4213433031), we get a palindrome (17246864271).

The spelling of 13033431240 in words is "thirteen billion, thirty-three million, four hundred thirty-one thousand, two hundred forty".