3120420211 has 4 divisors (see below), whose sum is σ = 3120585424. Its totient is φ = 3120255000.

The previous prime is 3120420187. The next prime is 3120420263. The reversal of 3120420211 is 1120240213.

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

It is a cyclic number.

It is not a de Polignac number, because 3120420211 - 2¹¹ = 3120418163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3120450211) 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, 49980 + ... + 93481.

It is an arithmetic number, because the mean of its divisors is an integer number (780146356).

Almost surely, 2^3120420211 is an apocalyptic number.

3120420211 is a deficient number, since it is larger than the sum of its proper divisors (165213).

3120420211 is a wasteful number, since it uses less digits than its factorization.

3120420211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165212.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 3120420211 is about 55860.7215402737. The cubic root of 3120420211 is about 1461.2943127629.

Adding to 3120420211 its reverse (1120240213), we get a palindrome (4240660424).

It can be divided in two parts, 31204 and 20211, that added together give a palindrome (51415).

The spelling of 3120420211 in words is "three billion, one hundred twenty million, four hundred twenty thousand, two hundred eleven".