13531321422 has 12 divisors (see below), whose sum is σ = 29317863120. Its totient is φ = 4510440468.

The previous prime is 13531321387. The next prime is 13531321483. The reversal of 13531321422 is 22412313531.

13531321422 is a `hidden beast` number, since 135 + 313 + 214 + 2 + 2 = 666.

It is a super-2 number, since 2×13531321422² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 375870022 + ... + 375870057.

It is an arithmetic number, because the mean of its divisors is an integer number (2443155260).

Almost surely, 2^13531321422 is an apocalyptic number.

13531321422 is an abundant number, since it is smaller than the sum of its proper divisors (15786541698).

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

13531321422 is a wasteful number, since it uses less digits than its factorization.

13531321422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 751740087 (or 751740084 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

Adding to 13531321422 its reverse (22412313531), we get a palindrome (35943634953).

The spelling of 13531321422 in words is "thirteen billion, five hundred thirty-one million, three hundred twenty-one thousand, four hundred twenty-two".