10042021013 has 2 divisors, whose sum is σ = 10042021014. Its totient is φ = 10042021012.

The previous prime is 10042021009. The next prime is 10042021043. The reversal of 10042021013 is 31012024001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7337292964 + 2704728049 = 85658^2 + 52007^2 .

It is a cyclic number.

It is not a de Polignac number, because 10042021013 - 2² = 10042021009 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10042021043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5021010506 + 5021010507.

It is an arithmetic number, because the mean of its divisors is an integer number (5021010507).

Almost surely, 2^10042021013 is an apocalyptic number.

It is an amenable number.

10042021013 is a deficient number, since it is larger than the sum of its proper divisors (1).

10042021013 is an equidigital number, since it uses as much as digits as its factorization.

10042021013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 10042021013 its reverse (31012024001), we get a palindrome (41054045014).

The spelling of 10042021013 in words is "ten billion, forty-two million, twenty-one thousand, thirteen".