13531322152 has 32 divisors (see below), whose sum is σ = 25504390080. Its totient is φ = 6730208640.

The previous prime is 13531322111. The next prime is 13531322171. The reversal of 13531322152 is 25122313531.

It is a super-2 number, since 2×13531322152² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13531322152.

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, 2403613 + ... + 2409235.

It is an arithmetic number, because the mean of its divisors is an integer number (797012190).

Almost surely, 2^13531322152 is an apocalyptic number.

It is an amenable number.

13531322152 is a deficient number, since it is larger than the sum of its proper divisors (11973067928).

13531322152 is a wasteful number, since it uses less digits than its factorization.

13531322152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7153 (or 7149 counting only the distinct ones).

The product of its digits is 5400, while the sum is 28.

Adding to 13531322152 its reverse (25122313531), we get a palindrome (38653635683).

The spelling of 13531322152 in words is "thirteen billion, five hundred thirty-one million, three hundred twenty-two thousand, one hundred fifty-two".