13531322426 has 16 divisors (see below), whose sum is σ = 20619930240. Its totient is φ = 6658355760.

The previous prime is 13531322417. The next prime is 13531322471. The reversal of 13531322426 is 62422313531.

It is a junction number, because it is equal to n+sod(n) for n = 13531322392 and 13531322401.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6446 + ... + 164633.

It is an arithmetic number, because the mean of its divisors is an integer number (1288745640).

Almost surely, 2^13531322426 is an apocalyptic number.

13531322426 is a deficient number, since it is larger than the sum of its proper divisors (7088607814).

13531322426 is a wasteful number, since it uses less digits than its factorization.

13531322426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171709.

The product of its digits is 25920, while the sum is 32.

Adding to 13531322426 its reverse (62422313531), we get a palindrome (75953635957).

The spelling of 13531322426 in words is "thirteen billion, five hundred thirty-one million, three hundred twenty-two thousand, four hundred twenty-six".