3101144021 has 4 divisors (see below), whose sum is σ = 3105518700. Its totient is φ = 3096769344.

The previous prime is 3101144009. The next prime is 3101144069. The reversal of 3101144021 is 1204411013.

It is a happy number.

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 1097596900 + 2003547121 = 33130^2 + 44761^2 .

It is a cyclic number.

It is not a de Polignac number, because 3101144021 - 2²⁶ = 3034035157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3101144621) 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, 2186276 + ... + 2187693.

It is an arithmetic number, because the mean of its divisors is an integer number (776379675).

Almost surely, 2^3101144021 is an apocalyptic number.

It is an amenable number.

3101144021 is a deficient number, since it is larger than the sum of its proper divisors (4374679).

3101144021 is an equidigital number, since it uses as much as digits as its factorization.

3101144021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4374678.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 3101144021 is about 55687.9162924956. The cubic root of 3101144021 is about 1458.2790790055.

Adding to 3101144021 its reverse (1204411013), we get a palindrome (4305555034).

The spelling of 3101144021 in words is "three billion, one hundred one million, one hundred forty-four thousand, twenty-one".