1241405111 has 2 divisors, whose sum is σ = 1241405112. Its totient is φ = 1241405110.

The previous prime is 1241405101. The next prime is 1241405129. The reversal of 1241405111 is 1115041421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1241405111 - 2¹⁸ = 1241142967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1241405101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620702555 + 620702556.

It is an arithmetic number, because the mean of its divisors is an integer number (620702556).

Almost surely, 2^1241405111 is an apocalyptic number.

1241405111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1241405111 is an equidigital number, since it uses as much as digits as its factorization.

1241405111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 160, while the sum is 20.

The square root of 1241405111 is about 35233.5793100843. The cubic root of 1241405111 is about 1074.7427142701.

Adding to 1241405111 its reverse (1115041421), we get a palindrome (2356446532).

The spelling of 1241405111 in words is "one billion, two hundred forty-one million, four hundred five thousand, one hundred eleven".