2031030121 has 2 divisors, whose sum is σ = 2031030122. Its totient is φ = 2031030120.

The previous prime is 2031030097. The next prime is 2031030139. The reversal of 2031030121 is 1210301302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1495755625 + 535274496 = 38675^2 + 23136^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2031030121 is a prime.

It is not a weakly prime, because it can be changed into another prime (2031034121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1015515060 + 1015515061.

It is an arithmetic number, because the mean of its divisors is an integer number (1015515061).

Almost surely, 2^2031030121 is an apocalyptic number.

It is an amenable number.

2031030121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2031030121 is an equidigital number, since it uses as much as digits as its factorization.

2031030121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 2031030121 is about 45066.9515387939. The cubic root of 2031030121 is about 1266.4035562080.

Adding to 2031030121 its reverse (1210301302), we get a palindrome (3241331423).

The spelling of 2031030121 in words is "two billion, thirty-one million, thirty thousand, one hundred twenty-one".