1301021011 has 2 divisors, whose sum is σ = 1301021012. Its totient is φ = 1301021010.

The previous prime is 1301020951. The next prime is 1301021021. The reversal of 1301021011 is 1101201031.

It is an a-pointer prime, because the next prime (1301021021) can be obtained adding 1301021011 to its sum of digits (10).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1301021011 - 2⁷ = 1301020883 is a prime.

It is not a weakly prime, because it can be changed into another prime (1301021021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 650510505 + 650510506.

It is an arithmetic number, because the mean of its divisors is an integer number (650510506).

Almost surely, 2^1301021011 is an apocalyptic number.

1301021011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1301021011 is an equidigital number, since it uses as much as digits as its factorization.

1301021011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6, while the sum is 10.

The square root of 1301021011 is about 36069.6688507117. The cubic root of 1301021011 is about 1091.6785324300.

Adding to 1301021011 its reverse (1101201031), we get a palindrome (2402222042).

The spelling of 1301021011 in words is "one billion, three hundred one million, twenty-one thousand, eleven".