1310120011 has 4 divisors (see below), whose sum is σ = 1387185912. Its totient is φ = 1233054112.

The previous prime is 1310120003. The next prime is 1310120023. The reversal of 1310120011 is 1100210131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1310120011 - 2³ = 1310120003 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1310120011.

It is not an unprimeable number, because it can be changed into a prime (1310120111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38532925 + ... + 38532958.

It is an arithmetic number, because the mean of its divisors is an integer number (346796478).

Almost surely, 2^1310120011 is an apocalyptic number.

1310120011 is a deficient number, since it is larger than the sum of its proper divisors (77065901).

1310120011 is an equidigital number, since it uses as much as digits as its factorization.

1310120011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77065900.

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

The square root of 1310120011 is about 36195.5799925903. The cubic root of 1310120011 is about 1094.2175936098.

Adding to 1310120011 its reverse (1100210131), we get a palindrome (2410330142).

The spelling of 1310120011 in words is "one billion, three hundred ten million, one hundred twenty thousand, eleven".