3112120201 has 4 divisors (see below), whose sum is σ = 3120120900. Its totient is φ = 3104119504.

The previous prime is 3112120199. The next prime is 3112120229. The reversal of 3112120201 is 1020212113.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1020212113 = 1571 ⋅649403.

It can be written as a sum of positive squares in 2 ways, for example, as 1134005625 + 1978114576 = 33675^2 + 44476^2 .

It is a cyclic number.

It is not a de Polignac number, because 3112120201 - 2¹ = 3112120199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3112120261) 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, 3999766 + ... + 4000543.

It is an arithmetic number, because the mean of its divisors is an integer number (780030225).

Almost surely, 2^3112120201 is an apocalyptic number.

It is an amenable number.

3112120201 is a deficient number, since it is larger than the sum of its proper divisors (8000699).

3112120201 is an equidigital number, since it uses as much as digits as its factorization.

3112120201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8000698.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 3112120201 is about 55786.3800671813. The cubic root of 3112120201 is about 1459.9975293947.

Adding to 3112120201 its reverse (1020212113), we get a palindrome (4132332314).

The spelling of 3112120201 in words is "three billion, one hundred twelve million, one hundred twenty thousand, two hundred one".