13531435412 has 24 divisors (see below), whose sum is σ = 25851752640. Its totient is φ = 6146125760.

The previous prime is 13531435397. The next prime is 13531435433. The reversal of 13531435412 is 21453413531.

It is a congruent number.

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, 52337 + ... + 172632.

It is an arithmetic number, because the mean of its divisors is an integer number (1077156360).

Almost surely, 2^13531435412 is an apocalyptic number.

It is an amenable number.

13531435412 is a deficient number, since it is larger than the sum of its proper divisors (12320317228).

13531435412 is a wasteful number, since it uses less digits than its factorization.

13531435412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226351 (or 226349 counting only the distinct ones).

The product of its digits is 21600, while the sum is 32.

Adding to 13531435412 its reverse (21453413531), we get a palindrome (34984848943).

The spelling of 13531435412 in words is "thirteen billion, five hundred thirty-one million, four hundred thirty-five thousand, four hundred twelve".