413233220021 has 4 divisors (see below), whose sum is σ = 413431605792. Its totient is φ = 413034834252.

The previous prime is 413233220003. The next prime is 413233220039. The reversal of 413233220021 is 120022332314.

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 an interprime number because it is at equal distance from previous prime (413233220003) and next prime (413233220039).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-413233220021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (413233220821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99189761 + ... + 99193926.

It is an arithmetic number, because the mean of its divisors is an integer number (103357901448).

Almost surely, 2^413233220021 is an apocalyptic number.

It is an amenable number.

413233220021 is a deficient number, since it is larger than the sum of its proper divisors (198385771).

413233220021 is a wasteful number, since it uses less digits than its factorization.

413233220021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198385770.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 413233220021 its reverse (120022332314), we get a palindrome (533255552335).

The spelling of 413233220021 in words is "four hundred thirteen billion, two hundred thirty-three million, two hundred twenty thousand, twenty-one".