1290611011 has 2 divisors, whose sum is σ = 1290611012. Its totient is φ = 1290611010.

The previous prime is 1290610963. The next prime is 1290611033. The reversal of 1290611011 is 1101160921.

It is an a-pointer prime, because the next prime (1290611033) can be obtained adding 1290611011 to its sum of digits (22).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1290611011 - 2⁹ = 1290610499 is a prime.

It is not a weakly prime, because it can be changed into another prime (1290611411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 645305505 + 645305506.

It is an arithmetic number, because the mean of its divisors is an integer number (645305506).

Almost surely, 2^1290611011 is an apocalyptic number.

1290611011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1290611011 is an equidigital number, since it uses as much as digits as its factorization.

1290611011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 22.

The square root of 1290611011 is about 35925.0749616476. The cubic root of 1290611011 is about 1088.7590768087.

Adding to 1290611011 its reverse (1101160921), we get a palindrome (2391771932).

The spelling of 1290611011 in words is "one billion, two hundred ninety million, six hundred eleven thousand, eleven".