1030121 has 2 divisors, whose sum is σ = 1030122. Its totient is φ = 1030120.

The previous prime is 1030111. The next prime is 1030153. The reversal of 1030121 is 1210301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 739600 + 290521 = 860^2 + 539^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1030121 is a prime.

It is a super-2 number, since 2×1030121² = 2122298549282, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1030099 and 1030108.

It is not a weakly prime, because it can be changed into another prime (1030111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515060 + 515061.

It is an arithmetic number, because the mean of its divisors is an integer number (515061).

2^1030121 is an apocalyptic number.

It is an amenable number.

1030121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1030121 is an equidigital number, since it uses as much as digits as its factorization.

1030121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 1030121 is about 1014.9487671799. The cubic root of 1030121 is about 100.9941178811.

Adding to 1030121 its reverse (1210301), we get a palindrome (2240422).

The spelling of 1030121 in words is "one million, thirty thousand, one hundred twenty-one".