13531154412 has 48 divisors (see below), whose sum is σ = 33472044032. Its totient is φ = 4246914240.

The previous prime is 13531154407. The next prime is 13531154419. The reversal of 13531154412 is 21445113531.

It is a self number, because there is not a number n which added to its sum of digits gives 13531154412.

It is not an unprimeable number, because it can be changed into a prime (13531154419) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 477778 + ... + 505305.

Almost surely, 2^13531154412 is an apocalyptic number.

13531154412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13531154412 is an abundant number, since it is smaller than the sum of its proper divisors (19940889620).

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

13531154412 is a wasteful number, since it uses less digits than its factorization.

13531154412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 983158 (or 983156 counting only the distinct ones).

The product of its digits is 7200, while the sum is 30.

Adding to 13531154412 its reverse (21445113531), we get a palindrome (34976267943).

The spelling of 13531154412 in words is "thirteen billion, five hundred thirty-one million, one hundred fifty-four thousand, four hundred twelve".