20413103221 has 8 divisors (see below), whose sum is σ = 24343576704. Its totient is φ = 16736208720.

The previous prime is 20413103189. The next prime is 20413103239. The reversal of 20413103221 is 12230131402.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20413103221 - 2⁵ = 20413103189 is a prime.

It is a super-2 number, since 2×20413103221² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20413103021) 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, 63394570 + ... + 63394891.

It is an arithmetic number, because the mean of its divisors is an integer number (3042947088).

Almost surely, 2^20413103221 is an apocalyptic number.

It is an amenable number.

20413103221 is a deficient number, since it is larger than the sum of its proper divisors (3930473483).

20413103221 is a wasteful number, since it uses less digits than its factorization.

20413103221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126789491.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 20413103221 its reverse (12230131402), we get a palindrome (32643234623).

The spelling of 20413103221 in words is "twenty billion, four hundred thirteen million, one hundred three thousand, two hundred twenty-one".