1300120011 has 64 divisors (see below), whose sum is σ = 2128896000. Its totient is φ = 780516000.

The previous prime is 1300120009. The next prime is 1300120013. The reversal of 1300120011 is 1100210031.

It is an interprime number because it is at equal distance from previous prime (1300120009) and next prime (1300120013).

It is not a de Polignac number, because 1300120011 - 2¹ = 1300120009 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1300119975 and 1300120002.

It is not an unprimeable number, because it can be changed into a prime (1300120013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2961330 + ... + 2961768.

It is an arithmetic number, because the mean of its divisors is an integer number (33264000).

Almost surely, 2^1300120011 is an apocalyptic number.

1300120011 is a deficient number, since it is larger than the sum of its proper divisors (828775989).

1300120011 is a wasteful number, since it uses less digits than its factorization.

1300120011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741 (or 735 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 1300120011 is about 36057.1769693635. The cubic root of 1300120011 is about 1091.4264664255.

Adding to 1300120011 its reverse (1100210031), we get a palindrome (2400330042).

The spelling of 1300120011 in words is "one billion, three hundred million, one hundred twenty thousand, eleven".