13123223422 has 4 divisors (see below), whose sum is σ = 19684835136. Its totient is φ = 6561611710.

The previous prime is 13123223401. The next prime is 13123223429. The reversal of 13123223422 is 22432232131.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13123223429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3280805854 + ... + 3280805857.

It is an arithmetic number, because the mean of its divisors is an integer number (4921208784).

Almost surely, 2^13123223422 is an apocalyptic number.

13123223422 is a deficient number, since it is larger than the sum of its proper divisors (6561611714).

13123223422 is an equidigital number, since it uses as much as digits as its factorization.

13123223422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6561611713.

The product of its digits is 3456, while the sum is 25.

Adding to 13123223422 its reverse (22432232131), we get a palindrome (35555455553).

The spelling of 13123223422 in words is "thirteen billion, one hundred twenty-three million, two hundred twenty-three thousand, four hundred twenty-two".