411215670121 has 3 divisors (see below), whose sum is σ = 411216311383. Its totient is φ = 411215028860.

The previous prime is 411215670101. The next prime is 411215670157. The reversal of 411215670121 is 121076512114.

It is a happy number.

The square root of 411215670121 is 641261.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 368374949721 + 42840720400 = 606939^2 + 206980^2 .

It is not a de Polignac number, because 411215670121 - 2³³ = 402625735529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (411215670101) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 320631 + ... + 961891.

Almost surely, 2^411215670121 is an apocalyptic number.

411215670121 is the 641261-st square number.

411215670121 is the 320631-st centered octagonal number.

It is an amenable number.

411215670121 is a deficient number, since it is larger than the sum of its proper divisors (641262).

411215670121 is an frugal number, since it uses more digits than its factorization.

411215670121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1282522 (or 641261 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 31.

The spelling of 411215670121 in words is "four hundred eleven billion, two hundred fifteen million, six hundred seventy thousand, one hundred twenty-one".