3030121 has 4 divisors (see below), whose sum is σ = 3047044. Its totient is φ = 3013200.

The previous prime is 3030119. The next prime is 3030127. The reversal of 3030121 is 1210303.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1210303 = 193 ⋅6271.

It can be written as a sum of positive squares in 2 ways, for example, as 1440000 + 1590121 = 1200^2 + 1261^2 .

It is a cyclic number.

It is not a de Polignac number, because 3030121 - 2¹ = 3030119 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3030098 and 3030107.

It is not an unprimeable number, because it can be changed into a prime (3030127) 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, 8190 + ... + 8551.

It is an arithmetic number, because the mean of its divisors is an integer number (761761).

Almost surely, 2^3030121 is an apocalyptic number.

It is an amenable number.

3030121 is a deficient number, since it is larger than the sum of its proper divisors (16923).

3030121 is a wasteful number, since it uses less digits than its factorization.

3030121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16922.

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 3030121 is about 1740.7242745478. The cubic root of 3030121 is about 144.7060394106.

Adding to 3030121 its reverse (1210303), we get a palindrome (4240424).

The spelling of 3030121 in words is "three million, thirty thousand, one hundred twenty-one".