13500420422 has 8 divisors (see below), whose sum is σ = 20334658872. Its totient is φ = 6722200800.

The previous prime is 13500420419. The next prime is 13500420449. The reversal of 13500420422 is 22402400531.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×13500420422² (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 3 ways as a sum of consecutive naturals, for example, 14004104 + ... + 14005067.

It is an arithmetic number, because the mean of its divisors is an integer number (2541832359).

Almost surely, 2^13500420422 is an apocalyptic number.

13500420422 is a deficient number, since it is larger than the sum of its proper divisors (6834238450).

13500420422 is a wasteful number, since it uses less digits than its factorization.

13500420422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28009414.

The product of its (nonzero) digits is 1920, while the sum is 23.

Adding to 13500420422 its reverse (22402400531), we get a palindrome (35902820953).

The spelling of 13500420422 in words is "thirteen billion, five hundred million, four hundred twenty thousand, four hundred twenty-two".