13201330021 has 6 divisors (see below), whose sum is σ = 14510552966. Its totient is φ = 12001209000.

The previous prime is 13201330007. The next prime is 13201330069. The reversal of 13201330021 is 12003310231.

It can be written as a sum of positive squares in only one way, i.e., 13011964900 + 189365121 = 114070^2 + 13761^2 .

It is not a de Polignac number, because 13201330021 - 2⁵ = 13201329989 is a prime.

It is a super-2 number, since 2×13201330021² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13201329977 and 13201330004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13201330081) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 54550830 + ... + 54551071.

Almost surely, 2^13201330021 is an apocalyptic number.

13201330021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13201330021 is a deficient number, since it is larger than the sum of its proper divisors (1309222945).

13201330021 is a wasteful number, since it uses less digits than its factorization.

13201330021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109101923 (or 109101912 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 13201330021 its reverse (12003310231), we get a palindrome (25204640252).

The spelling of 13201330021 in words is "thirteen billion, two hundred one million, three hundred thirty thousand, twenty-one".