411321011021 has 4 divisors (see below), whose sum is σ = 421353230844. Its totient is φ = 401288791200.

The previous prime is 411321010993. The next prime is 411321011033. The reversal of 411321011021 is 120110123114.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5028228100 + 406292782921 = 70910^2 + 637411^2 .

It is a cyclic number.

It is not a de Polignac number, because 411321011021 - 2³⁰ = 410247269197 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 (411321011821) 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, 5016109850 + ... + 5016109931.

It is an arithmetic number, because the mean of its divisors is an integer number (105338307711).

Almost surely, 2^411321011021 is an apocalyptic number.

411321011021 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

411321011021 is a deficient number, since it is larger than the sum of its proper divisors (10032219823).

411321011021 is a wasteful number, since it uses less digits than its factorization.

411321011021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10032219822.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 411321011021 its reverse (120110123114), we get a palindrome (531431134135).

The spelling of 411321011021 in words is "four hundred eleven billion, three hundred twenty-one million, eleven thousand, twenty-one".