2311120513 has 8 divisors (see below), whose sum is σ = 2549604456. Its totient is φ = 2081308800.

The previous prime is 2311120507. The next prime is 2311120531. The reversal of 2311120513 is 3150211132.

It can be written as a sum of positive squares in 4 ways, for example, as 15944049 + 2295176464 = 3993^2 + 47908^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2311120513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2311120013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2167498 + ... + 2168563.

It is an arithmetic number, because the mean of its divisors is an integer number (318700557).

Almost surely, 2^2311120513 is an apocalyptic number.

It is an amenable number.

2311120513 is a deficient number, since it is larger than the sum of its proper divisors (238483943).

2311120513 is a wasteful number, since it uses less digits than its factorization.

2311120513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4336115.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 2311120513 is about 48074.1147916423. The cubic root of 2311120513 is about 1322.1301146458.

Adding to 2311120513 its reverse (3150211132), we get a palindrome (5461331645).

The spelling of 2311120513 in words is "two billion, three hundred eleven million, one hundred twenty thousand, five hundred thirteen".