412142321 has 4 divisors (see below), whose sum is σ = 414234612. Its totient is φ = 410050032.

The previous prime is 412142299. The next prime is 412142323. The reversal of 412142321 is 123241214.

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 318265600 + 93876721 = 17840^2 + 9689^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-412142321 is a prime.

It is a super-2 number, since 2×412142321² = 339722585518534082, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 412142293 and 412142302.

It is not an unprimeable number, because it can be changed into a prime (412142323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1045850 + ... + 1046243.

It is an arithmetic number, because the mean of its divisors is an integer number (103558653).

Almost surely, 2^412142321 is an apocalyptic number.

It is an amenable number.

412142321 is a deficient number, since it is larger than the sum of its proper divisors (2092291).

412142321 is a wasteful number, since it uses less digits than its factorization.

412142321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2092290.

The product of its digits is 384, while the sum is 20.

The square root of 412142321 is about 20301.2886536791. The cubic root of 412142321 is about 744.1875568930.

Adding to 412142321 its reverse (123241214), we get a palindrome (535383535).

The spelling of 412142321 in words is "four hundred twelve million, one hundred forty-two thousand, three hundred twenty-one".