412001321 has 4 divisors (see below), whose sum is σ = 416080644. Its totient is φ = 407922000.

The previous prime is 412001297. The next prime is 412001329. The reversal of 412001321 is 123100214.

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 298045696 + 113955625 = 17264^2 + 10675^2 .

It is a cyclic number.

It is not a de Polignac number, because 412001321 - 2²² = 407807017 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 412001296 and 412001305.

It is not an unprimeable number, because it can be changed into a prime (412001329) 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, 2039510 + ... + 2039711.

It is an arithmetic number, because the mean of its divisors is an integer number (104020161).

Almost surely, 2^412001321 is an apocalyptic number.

It is an amenable number.

412001321 is a deficient number, since it is larger than the sum of its proper divisors (4079323).

412001321 is a wasteful number, since it uses less digits than its factorization.

412001321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4079322.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 412001321 is about 20297.8156706578. The cubic root of 412001321 is about 744.1026813468.

Adding to 412001321 its reverse (123100214), we get a palindrome (535101535).

The spelling of 412001321 in words is "four hundred twelve million, one thousand, three hundred twenty-one".