13500011223 has 12 divisors (see below), whose sum is σ = 20129049408. Its totient is φ = 8709684480.

The previous prime is 13500011221. The next prime is 13500011263. The reversal of 13500011223 is 32211000531.

It is not a de Polignac number, because 13500011223 - 2¹ = 13500011221 is a prime.

It is a super-2 number, since 2×13500011223² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13500011196 and 13500011205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13500011221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24193290 + ... + 24193847.

It is an arithmetic number, because the mean of its divisors is an integer number (1677420784).

Almost surely, 2^13500011223 is an apocalyptic number.

13500011223 is a deficient number, since it is larger than the sum of its proper divisors (6629038185).

13500011223 is a wasteful number, since it uses less digits than its factorization.

13500011223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48387174 (or 48387171 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

Adding to 13500011223 its reverse (32211000531), we get a palindrome (45711011754).

The spelling of 13500011223 in words is "thirteen billion, five hundred million, eleven thousand, two hundred twenty-three".