411640331 has 2 divisors, whose sum is σ = 411640332. Its totient is φ = 411640330.

The previous prime is 411640309. The next prime is 411640343. The reversal of 411640331 is 133046114.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 411640331 - 2¹⁰ = 411639307 is a prime.

It is a super-2 number, since 2×411640331² = 338895524211579122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 411640297 and 411640306.

It is not a weakly prime, because it can be changed into another prime (411640381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 205820165 + 205820166.

It is an arithmetic number, because the mean of its divisors is an integer number (205820166).

Almost surely, 2^411640331 is an apocalyptic number.

411640331 is a deficient number, since it is larger than the sum of its proper divisors (1).

411640331 is an equidigital number, since it uses as much as digits as its factorization.

411640331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 411640331 is about 20288.9213858204. The cubic root of 411640331 is about 743.8852935996.

Adding to 411640331 its reverse (133046114), we get a palindrome (544686445).

The spelling of 411640331 in words is "four hundred eleven million, six hundred forty thousand, three hundred thirty-one".