1240436011 has 2 divisors, whose sum is σ = 1240436012. Its totient is φ = 1240436010.

The previous prime is 1240435969. The next prime is 1240436027. The reversal of 1240436011 is 1106340421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1240436011 - 2¹⁹ = 1239911723 is a prime.

It is not a weakly prime, because it can be changed into another prime (1240436611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620218005 + 620218006.

It is an arithmetic number, because the mean of its divisors is an integer number (620218006).

Almost surely, 2^1240436011 is an apocalyptic number.

1240436011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1240436011 is an equidigital number, since it uses as much as digits as its factorization.

1240436011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 1240436011 is about 35219.8241193791. The cubic root of 1240436011 is about 1074.4629763354.

Adding to 1240436011 its reverse (1106340421), we get a palindrome (2346776432).

The spelling of 1240436011 in words is "one billion, two hundred forty million, four hundred thirty-six thousand, eleven".