513101203 has 2 divisors, whose sum is σ = 513101204. Its totient is φ = 513101202.

The previous prime is 513101201. The next prime is 513101207. The reversal of 513101203 is 302101315.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 513101203 - 2¹ = 513101201 is a prime.

Together with 513101201, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (513101201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256550601 + 256550602.

It is an arithmetic number, because the mean of its divisors is an integer number (256550602).

Almost surely, 2^513101203 is an apocalyptic number.

513101203 is a deficient number, since it is larger than the sum of its proper divisors (1).

513101203 is an equidigital number, since it uses as much as digits as its factorization.

513101203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 513101203 is about 22651.7373064408. The cubic root of 513101203 is about 800.5731325300.

Adding to 513101203 its reverse (302101315), we get a palindrome (815202518).

The spelling of 513101203 in words is "five hundred thirteen million, one hundred one thousand, two hundred three".