13211200424 has 8 divisors (see below), whose sum is σ = 24771000810. Its totient is φ = 6605600208.

The previous prime is 13211200411. The next prime is 13211200439. The reversal of 13211200424 is 42400211231.

It can be written as a sum of positive squares in only one way, i.e., 13034788900 + 176411524 = 114170^2 + 13282^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 13211200396 and 13211200405.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 825700019 + ... + 825700034.

Almost surely, 2^13211200424 is an apocalyptic number.

It is an amenable number.

13211200424 is a deficient number, since it is larger than the sum of its proper divisors (11559800386).

13211200424 is a wasteful number, since it uses less digits than its factorization.

13211200424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1651400059 (or 1651400055 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 13211200424 its reverse (42400211231), we get a palindrome (55611411655).

The spelling of 13211200424 in words is "thirteen billion, two hundred eleven million, two hundred thousand, four hundred twenty-four".