10812503 has 4 divisors (see below), whose sum is σ = 11644248. Its totient is φ = 9980760.

The previous prime is 10812499. The next prime is 10812511. The reversal of 10812503 is 30521801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30521801 = 197 ⋅154933.

It is a cyclic number.

It is not a de Polignac number, because 10812503 - 2² = 10812499 is a prime.

It is a super-2 number, since 2×10812503² = 233820442250018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10812523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 415853 + ... + 415878.

It is an arithmetic number, because the mean of its divisors is an integer number (2911062).

Almost surely, 2^10812503 is an apocalyptic number.

10812503 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

10812503 is a deficient number, since it is larger than the sum of its proper divisors (831745).

10812503 is an equidigital number, since it uses as much as digits as its factorization.

10812503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831744.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 10812503 is about 3288.2370656630. The cubic root of 10812503 is about 221.1271559969.

The spelling of 10812503 in words is "ten million, eight hundred twelve thousand, five hundred three".