412321381 has 2 divisors, whose sum is σ = 412321382. Its totient is φ = 412321380.

The previous prime is 412321373. The next prime is 412321411. The reversal of 412321381 is 183123214.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 410265025 + 2056356 = 20255^2 + 1434^2 .

It is a cyclic number.

It is not a de Polignac number, because 412321381 - 2³ = 412321373 is a prime.

It is a super-2 number, since 2×412321381² = 340017842459494322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (412321361) 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 as a sum of consecutive naturals, namely, 206160690 + 206160691.

It is an arithmetic number, because the mean of its divisors is an integer number (206160691).

Almost surely, 2^412321381 is an apocalyptic number.

It is an amenable number.

412321381 is a deficient number, since it is larger than the sum of its proper divisors (1).

412321381 is an equidigital number, since it uses as much as digits as its factorization.

412321381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 25.

The square root of 412321381 is about 20305.6982396568. The cubic root of 412321381 is about 744.2953149205.

Adding to 412321381 its reverse (183123214), we get a palindrome (595444595).

The spelling of 412321381 in words is "four hundred twelve million, three hundred twenty-one thousand, three hundred eighty-one".