2030121 has 6 divisors (see below), whose sum is σ = 2932410. Its totient is φ = 1353408.

The previous prime is 2030117. The next prime is 2030137. The reversal of 2030121 is 1210302.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1625625 + 404496 = 1275^2 + 636^2 .

It is not a de Polignac number, because 2030121 - 2² = 2030117 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 225569 = 2030121 / (2 + 0 + 3 + 0 + 1 + 2 + 1).

2030121 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2030101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 112776 + ... + 112793.

It is an arithmetic number, because the mean of its divisors is an integer number (488735).

2^2030121 is an apocalyptic number.

It is an amenable number.

2030121 is a deficient number, since it is larger than the sum of its proper divisors (902289).

2030121 is a wasteful number, since it uses less digits than its factorization.

2030121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225575 (or 225572 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 2030121 is about 1424.8231469203. The cubic root of 2030121 is about 126.6214573964.

Adding to 2030121 its reverse (1210302), we get a palindrome (3240423).

The spelling of 2030121 in words is "two million, thirty thousand, one hundred twenty-one".