1011230503 has 2 divisors, whose sum is σ = 1011230504. Its totient is φ = 1011230502.

The previous prime is 1011230501. The next prime is 1011230569. The reversal of 1011230503 is 3050321101.

1011230503 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1011230503 - 2¹ = 1011230501 is a prime.

Together with 1011230501, 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 (1011230501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505615251 + 505615252.

It is an arithmetic number, because the mean of its divisors is an integer number (505615252).

Almost surely, 2^1011230503 is an apocalyptic number.

1011230503 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011230503 is an equidigital number, since it uses as much as digits as its factorization.

1011230503 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 16.

The square root of 1011230503 is about 31799.8506757500. The cubic root of 1011230503 is about 1003.7295739854.

Adding to 1011230503 its reverse (3050321101), we get a palindrome (4061551604).

The spelling of 1011230503 in words is "one billion, eleven million, two hundred thirty thousand, five hundred three".