413211021 has 4 divisors (see below), whose sum is σ = 550948032. Its totient is φ = 275474012.

The previous prime is 413211013. The next prime is 413211023. The reversal of 413211021 is 120112314.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 413211021 - 2³ = 413211013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (413211023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68868501 + ... + 68868506.

It is an arithmetic number, because the mean of its divisors is an integer number (137737008).

Almost surely, 2^413211021 is an apocalyptic number.

It is an amenable number.

413211021 is a deficient number, since it is larger than the sum of its proper divisors (137737011).

413211021 is a wasteful number, since it uses less digits than its factorization.

413211021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137737010.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 413211021 is about 20327.5926021750. The cubic root of 413211021 is about 744.8302368321.

Adding to 413211021 its reverse (120112314), we get a palindrome (533323335).

The spelling of 413211021 in words is "four hundred thirteen million, two hundred eleven thousand, twenty-one".