13503231240 has 64 divisors (see below), whose sum is σ = 42892623360. Its totient is φ = 3389045760.

The previous prime is 13503231233. The next prime is 13503231251. The reversal of 13503231240 is 4213230531.

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 13503231240.

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, 3307576 + ... + 3311655.

It is an arithmetic number, because the mean of its divisors is an integer number (670197240).

Almost surely, 2^13503231240 is an apocalyptic number.

13503231240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13503231240 is an abundant number, since it is smaller than the sum of its proper divisors (29389392120).

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

13503231240 is a wasteful number, since it uses less digits than its factorization.

13503231240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6619262 (or 6619258 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

Adding to 13503231240 its reverse (4213230531), we get a palindrome (17716461771).

The spelling of 13503231240 in words is "thirteen billion, five hundred three million, two hundred thirty-one thousand, two hundred forty".