1000099013 has 2 divisors, whose sum is σ = 1000099014. Its totient is φ = 1000099012.

The previous prime is 1000098989. The next prime is 1000099049. The reversal of 1000099013 is 3109900001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 892396129 + 107702884 = 29873^2 + 10378^2 .

It is a cyclic number.

It is not a de Polignac number, because 1000099013 - 2¹² = 1000094917 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1000099013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1000099063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500049506 + 500049507.

It is an arithmetic number, because the mean of its divisors is an integer number (500049507).

Almost surely, 2^1000099013 is an apocalyptic number.

It is an amenable number.

1000099013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000099013 is an equidigital number, since it uses as much as digits as its factorization.

1000099013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 243, while the sum is 23.

The square root of 1000099013 is about 31624.3420959235. The cubic root of 1000099013 is about 1000.0330032441.

Adding to 1000099013 its reverse (3109900001), we get a palindrome (4109999014).

The spelling of 1000099013 in words is "one billion, ninety-nine thousand, thirteen".