120304011311 has 16 divisors (see below), whose sum is σ = 138657984000. Its totient is φ = 103228732800.

The previous prime is 120304011287. The next prime is 120304011313. The reversal of 120304011311 is 113110403021.

It is a de Polignac number, because none of the positive numbers 2^k-120304011311 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 120304011311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120304011313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1005386 + ... + 1118663.

It is an arithmetic number, because the mean of its divisors is an integer number (8666124000).

Almost surely, 2^120304011311 is an apocalyptic number.

120304011311 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

120304011311 is a deficient number, since it is larger than the sum of its proper divisors (18353972689).

120304011311 is a wasteful number, since it uses less digits than its factorization.

120304011311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2124350.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 120304011311 its reverse (113110403021), we get a palindrome (233414414332).

The spelling of 120304011311 in words is "one hundred twenty billion, three hundred four million, eleven thousand, three hundred eleven".