23070503 has 4 divisors (see below), whose sum is σ = 24284760. Its totient is φ = 21856248.

The previous prime is 23070469. The next prime is 23070533. The reversal of 23070503 is 30507032.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23070503 - 2¹⁶ = 23004967 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23070533) 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, 607100 + ... + 607137.

It is an arithmetic number, because the mean of its divisors is an integer number (6071190).

Almost surely, 2^23070503 is an apocalyptic number.

23070503 is a deficient number, since it is larger than the sum of its proper divisors (1214257).

23070503 is a wasteful number, since it uses less digits than its factorization.

23070503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1214256.

The product of its (nonzero) digits is 630, while the sum is 20.

The square root of 23070503 is about 4803.1763448785. The cubic root of 23070503 is about 284.6769829609.

Adding to 23070503 its reverse (30507032), we get a palindrome (53577535).

Subtracting 23070503 from its reverse (30507032), we obtain a square (7436529 = 2727²).

The spelling of 23070503 in words is "twenty-three million, seventy thousand, five hundred three".