3120020201 has 4 divisors (see below), whose sum is σ = 3120280404. Its totient is φ = 3119760000.

The previous prime is 3120020179. The next prime is 3120020207. The reversal of 3120020201 is 1020200213.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1020200213 = 23 ⋅44356531.

It can be written as a sum of positive squares in 2 ways, for example, as 1616442025 + 1503578176 = 40205^2 + 38776^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3120020201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3120020207) 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, 111200 + ... + 136401.

It is an arithmetic number, because the mean of its divisors is an integer number (780070101).

Almost surely, 2^3120020201 is an apocalyptic number.

It is an amenable number.

3120020201 is a deficient number, since it is larger than the sum of its proper divisors (260203).

3120020201 is a wasteful number, since it uses less digits than its factorization.

3120020201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260202.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 3120020201 is about 55857.1410027402. The cubic root of 3120020201 is about 1461.2318684683.

Adding to 3120020201 its reverse (1020200213), we get a palindrome (4140220414).

The spelling of 3120020201 in words is "three billion, one hundred twenty million, twenty thousand, two hundred one".