1012042313 has 2 divisors, whose sum is σ = 1012042314. Its totient is φ = 1012042312.

The previous prime is 1012042309. The next prime is 1012042327. The reversal of 1012042313 is 3132402101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1004129344 + 7912969 = 31688^2 + 2813^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012042313 - 2² = 1012042309 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1012042291 and 1012042300.

It is not a weakly prime, because it can be changed into another prime (1012042363) 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 as a sum of consecutive naturals, namely, 506021156 + 506021157.

It is an arithmetic number, because the mean of its divisors is an integer number (506021157).

Almost surely, 2^1012042313 is an apocalyptic number.

It is an amenable number.

1012042313 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012042313 is an equidigital number, since it uses as much as digits as its factorization.

1012042313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1012042313 is about 31812.6124831017. The cubic root of 1012042313 is about 1003.9980982409.

Adding to 1012042313 its reverse (3132402101), we get a palindrome (4144444414).

The spelling of 1012042313 in words is "one billion, twelve million, forty-two thousand, three hundred thirteen".