1012330303261 has 2 divisors, whose sum is σ = 1012330303262. Its totient is φ = 1012330303260.

The previous prime is 1012330303151. The next prime is 1012330303267. The reversal of 1012330303261 is 1623030332101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 749945608036 + 262384695225 = 865994^2 + 512235^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012330303261 - 2⁹ = 1012330302749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1012330303267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506165151630 + 506165151631.

It is an arithmetic number, because the mean of its divisors is an integer number (506165151631).

Almost surely, 2^{1012330303261} is an apocalyptic number.

It is an amenable number.

1012330303261 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012330303261 is an equidigital number, since it uses as much as digits as its factorization.

1012330303261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 1012330303261 its reverse (1623030332101), we get a palindrome (2635360635362).

The spelling of 1012330303261 in words is "one trillion, twelve billion, three hundred thirty million, three hundred three thousand, two hundred sixty-one".