1021342013 has 2 divisors, whose sum is σ = 1021342014. Its totient is φ = 1021342012.

The previous prime is 1021342009. The next prime is 1021342019. The reversal of 1021342013 is 3102431201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 758837209 + 262504804 = 27547^2 + 16202^2 .

It is a cyclic number.

It is not a de Polignac number, because 1021342013 - 2² = 1021342009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1021341982 and 1021342000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1021342019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510671006 + 510671007.

It is an arithmetic number, because the mean of its divisors is an integer number (510671007).

Almost surely, 2^1021342013 is an apocalyptic number.

It is an amenable number.

1021342013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021342013 is an equidigital number, since it uses as much as digits as its factorization.

1021342013 is an evil number, because the sum of its binary digits is even.

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

The square root of 1021342013 is about 31958.4419676554. The cubic root of 1021342013 is about 1007.0639869246.

Adding to 1021342013 its reverse (3102431201), we get a palindrome (4123773214).

The spelling of 1021342013 in words is "one billion, twenty-one million, three hundred forty-two thousand, thirteen".