1231210503 has 32 divisors (see below), whose sum is σ = 1868313600. Its totient is φ = 801108000.

The previous prime is 1231210489. The next prime is 1231210523. The reversal of 1231210503 is 3050121321.

It is not a de Polignac number, because 1231210503 - 2¹³ = 1231202311 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231210523) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 190438 + ... + 196796.

It is an arithmetic number, because the mean of its divisors is an integer number (58384800).

Almost surely, 2^1231210503 is an apocalyptic number.

1231210503 is a deficient number, since it is larger than the sum of its proper divisors (637103097).

1231210503 is a wasteful number, since it uses less digits than its factorization.

1231210503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6540 (or 6534 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 1231210503 is about 35088.6093055852. The cubic root of 1231210503 is about 1071.7926403220.

Adding to 1231210503 its reverse (3050121321), we get a palindrome (4281331824).

The spelling of 1231210503 in words is "one billion, two hundred thirty-one million, two hundred ten thousand, five hundred three".