10513903 has 2 divisors, whose sum is σ = 10513904. Its totient is φ = 10513902.

The previous prime is 10513901. The next prime is 10513933. The reversal of 10513903 is 30931501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10513903 - 2¹ = 10513901 is a prime.

It is a super-2 number, since 2×10513903² = 221084312586818, which contains 22 as substring.

Together with 10513901, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10513901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5256951 + 5256952.

It is an arithmetic number, because the mean of its divisors is an integer number (5256952).

Almost surely, 2^10513903 is an apocalyptic number.

10513903 is a deficient number, since it is larger than the sum of its proper divisors (1).

10513903 is an equidigital number, since it uses as much as digits as its factorization.

10513903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 405, while the sum is 22.

The square root of 10513903 is about 3242.5149190096. The cubic root of 10513903 is about 219.0725627092.

The spelling of 10513903 in words is "ten million, five hundred thirteen thousand, nine hundred three".