13123132222 has 4 divisors (see below), whose sum is σ = 19684698336. Its totient is φ = 6561566110.

The previous prime is 13123132219. The next prime is 13123132223. The reversal of 13123132222 is 22223132131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22223132131 = 71 ⋅313001861.

It is a junction number, because it is equal to n+sod(n) for n = 13123132193 and 13123132202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13123132223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3280783054 + ... + 3280783057.

It is an arithmetic number, because the mean of its divisors is an integer number (4921174584).

Almost surely, 2^13123132222 is an apocalyptic number.

13123132222 is a deficient number, since it is larger than the sum of its proper divisors (6561566114).

13123132222 is an equidigital number, since it uses as much as digits as its factorization.

13123132222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6561566113.

The product of its digits is 864, while the sum is 22.

Adding to 13123132222 its reverse (22223132131), we get a palindrome (35346264353).

Subtracting 13123132222 from its reverse (22223132131), we obtain a palindrome (9099999909).

The spelling of 13123132222 in words is "thirteen billion, one hundred twenty-three million, one hundred thirty-two thousand, two hundred twenty-two".