3120420133 has 4 divisors (see below), whose sum is σ = 3141362700. Its totient is φ = 3099477568.

The previous prime is 3120420077. The next prime is 3120420161. The reversal of 3120420133 is 3310240213.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1434742884 + 1685677249 = 37878^2 + 41057^2 .

It is a cyclic number.

It is not a de Polignac number, because 3120420133 - 2¹⁷ = 3120289061 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 3120420133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3120429133) 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, 10471060 + ... + 10471357.

It is an arithmetic number, because the mean of its divisors is an integer number (785340675).

Almost surely, 2^3120420133 is an apocalyptic number.

It is an amenable number.

3120420133 is a deficient number, since it is larger than the sum of its proper divisors (20942567).

3120420133 is a wasteful number, since it uses less digits than its factorization.

3120420133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20942566.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 3120420133 is about 55860.7208421087. The cubic root of 3120420133 is about 1461.2943005871.

Adding to 3120420133 its reverse (3310240213), we get a palindrome (6430660346).

The spelling of 3120420133 in words is "three billion, one hundred twenty million, four hundred twenty thousand, one hundred thirty-three".