23403000542503 has 8 divisors (see below), whose sum is σ = 24210547764480. Its totient is φ = 22595489800800.

The previous prime is 23403000542473. The next prime is 23403000542513. The reversal of 23403000542503 is 30524500030432.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23403000542503 - 2¹³ = 23403000534311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23403000542513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7811700 + ... + 10384057.

It is an arithmetic number, because the mean of its divisors is an integer number (3026318470560).

Almost surely, 2^{23403000542503} is an apocalyptic number.

23403000542503 is a deficient number, since it is larger than the sum of its proper divisors (807547221977).

23403000542503 is a wasteful number, since it uses less digits than its factorization.

23403000542503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18240137.

The product of its (nonzero) digits is 43200, while the sum is 31.

Adding to 23403000542503 its reverse (30524500030432), we get a palindrome (53927500572935).

The spelling of 23403000542503 in words is "twenty-three trillion, four hundred three billion, five hundred forty-two thousand, five hundred three".