13220327434 has 16 divisors (see below), whose sum is σ = 20120679936. Its totient is φ = 6514081600.

The previous prime is 13220327429. The next prime is 13220327437. The reversal of 13220327434 is 43472302231.

It is a junction number, because it is equal to n+sod(n) for n = 13220327396 and 13220327405.

It is not an unprimeable number, because it can be changed into a prime (13220327437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120847 + ... + 202594.

It is an arithmetic number, because the mean of its divisors is an integer number (1257542496).

Almost surely, 2^13220327434 is an apocalyptic number.

13220327434 is a deficient number, since it is larger than the sum of its proper divisors (6900352502).

13220327434 is a wasteful number, since it uses less digits than its factorization.

13220327434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323741.

The product of its (nonzero) digits is 24192, while the sum is 31.

Adding to 13220327434 its reverse (43472302231), we get a palindrome (56692629665).

The spelling of 13220327434 in words is "thirteen billion, two hundred twenty million, three hundred twenty-seven thousand, four hundred thirty-four".