23340320503 has 4 divisors (see below), whose sum is σ = 23345337040. Its totient is φ = 23335303968.

The previous prime is 23340320467. The next prime is 23340320543. The reversal of 23340320503 is 30502304332.

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 23340320503 - 2²¹ = 23338223351 is a prime.

It is a super-2 number, since 2×23340320503² (a number of 22 digits) 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 (23340320543) 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, 2501283 + ... + 2510596.

It is an arithmetic number, because the mean of its divisors is an integer number (5836334260).

Almost surely, 2^23340320503 is an apocalyptic number.

23340320503 is a deficient number, since it is larger than the sum of its proper divisors (5016537).

23340320503 is an equidigital number, since it uses as much as digits as its factorization.

23340320503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5016536.

The product of its (nonzero) digits is 6480, while the sum is 25.

Adding to 23340320503 its reverse (30502304332), we get a palindrome (53842624835).

The spelling of 23340320503 in words is "twenty-three billion, three hundred forty million, three hundred twenty thousand, five hundred three".