3100111813 has 8 divisors (see below), whose sum is σ = 3139746840. Its totient is φ = 3060583680.

The previous prime is 3100111799. The next prime is 3100111829. The reversal of 3100111813 is 3181110013.

It can be written as a sum of positive squares in 4 ways, for example, as 1307690244 + 1792421569 = 36162^2 + 42337^2 .

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-3100111813 is a prime.

It is a super-2 number, since 2×3100111813² = 19221386506204293938, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3100141813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32481 + ... + 85177.

It is an arithmetic number, because the mean of its divisors is an integer number (392468355).

Almost surely, 2^3100111813 is an apocalyptic number.

It is an amenable number.

3100111813 is a deficient number, since it is larger than the sum of its proper divisors (39635027).

3100111813 is an equidigital number, since it uses as much as digits as its factorization.

3100111813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53447.

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 3100111813 is about 55678.6477296279. The cubic root of 3100111813 is about 1458.1172662080.

Adding to 3100111813 its reverse (3181110013), we get a palindrome (6281221826).

The spelling of 3100111813 in words is "three billion, one hundred million, one hundred eleven thousand, eight hundred thirteen".