3099120481 has 4 divisors (see below), whose sum is σ = 3182880532. Its totient is φ = 3015360432.

The previous prime is 3099120473. The next prime is 3099120491. The reversal of 3099120481 is 1840219903.

3099120481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1840219903 = 23 ⋅80009561.

It can be written as a sum of positive squares in 2 ways, for example, as 1500400225 + 1598720256 = 38735^2 + 39984^2 .

It is a cyclic number.

It is not a de Polignac number, because 3099120481 - 2³ = 3099120473 is a prime.

It is a super-2 number, since 2×3099120481² = 19209095511507342722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 83760013 = 3099120481 / (3 + 0 + 9 + 9 + 1 + 2 + 0 + 4 + 8 + 1).

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 3099120481.

It is not an unprimeable number, because it can be changed into a prime (3099120491) 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, 41879970 + ... + 41880043.

It is an arithmetic number, because the mean of its divisors is an integer number (795720133).

Almost surely, 2^3099120481 is an apocalyptic number.

It is an amenable number.

3099120481 is a deficient number, since it is larger than the sum of its proper divisors (83760051).

3099120481 is an equidigital number, since it uses as much as digits as its factorization.

3099120481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83760050.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 3099120481 is about 55669.7447542200. The cubic root of 3099120481 is about 1457.9618274695.

The spelling of 3099120481 in words is "three billion, ninety-nine million, one hundred twenty thousand, four hundred eighty-one".