13201219028 has 12 divisors (see below), whose sum is σ = 23126381460. Its totient is φ = 6593681472.

The previous prime is 13201218949. The next prime is 13201219043. The reversal of 13201219028 is 82091210231.

It can be written as a sum of positive squares in 2 ways, for example, as 3753767824 + 9447451204 = 61268^2 + 97198^2 .

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, 1727723 + ... + 1735346.

It is an arithmetic number, because the mean of its divisors is an integer number (1927198455).

Almost surely, 2^13201219028 is an apocalyptic number.

It is an amenable number.

13201219028 is a deficient number, since it is larger than the sum of its proper divisors (9925162432).

13201219028 is a wasteful number, since it uses less digits than its factorization.

13201219028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3464026 (or 3464024 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 29.

Adding to 13201219028 its reverse (82091210231), we get a palindrome (95292429259).

The spelling of 13201219028 in words is "thirteen billion, two hundred one million, two hundred nineteen thousand, twenty-eight".