30012503 has 2 divisors, whose sum is σ = 30012504. Its totient is φ = 30012502.

The previous prime is 30012487. The next prime is 30012523. The reversal of 30012503 is 30521003.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30012503 - 2⁴ = 30012487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30012523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15006251 + 15006252.

It is an arithmetic number, because the mean of its divisors is an integer number (15006252).

Almost surely, 2^30012503 is an apocalyptic number.

30012503 is a deficient number, since it is larger than the sum of its proper divisors (1).

30012503 is an equidigital number, since it uses as much as digits as its factorization.

30012503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90, while the sum is 14.

The square root of 30012503 is about 5478.3668186787. The cubic root of 30012503 is about 310.7664109645.

Adding to 30012503 its reverse (30521003), we get a palindrome (60533506).

The spelling of 30012503 in words is "thirty million, twelve thousand, five hundred three".