1231411 has 2 divisors, whose sum is σ = 1231412. Its totient is φ = 1231410.

The previous prime is 1231387. The next prime is 1231421. The reversal of 1231411 is 1141321.

It is a strong prime.

It is an emirp because it is prime and its reverse (1141321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1231411 - 2⁵ = 1231379 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1231391 and 1231400.

It is not a weakly prime, because it can be changed into another prime (1231421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615705 + 615706.

It is an arithmetic number, because the mean of its divisors is an integer number (615706).

2^1231411 is an apocalyptic number.

1231411 is a deficient number, since it is larger than the sum of its proper divisors (1).

1231411 is an equidigital number, since it uses as much as digits as its factorization.

1231411 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24, while the sum is 13.

The square root of 1231411 is about 1109.6895962385. The cubic root of 1231411 is about 107.1850816008.

Adding to 1231411 its reverse (1141321), we get a palindrome (2372732).

The spelling of 1231411 in words is "one million, two hundred thirty-one thousand, four hundred eleven".