23011225503 has 16 divisors (see below), whose sum is σ = 35780332800. Its totient is φ = 13149271128.

The previous prime is 23011225499. The next prime is 23011225543. The reversal of 23011225503 is 30552211032.

It is a happy number.

It is not a de Polignac number, because 23011225503 - 2² = 23011225499 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23011225543) 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 15 ways as a sum of consecutive naturals, for example, 11180325 + ... + 11182382.

It is an arithmetic number, because the mean of its divisors is an integer number (2236270800).

Almost surely, 2^23011225503 is an apocalyptic number.

23011225503 is a deficient number, since it is larger than the sum of its proper divisors (12769107297).

23011225503 is an equidigital number, since it uses as much as digits as its factorization.

23011225503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22362731 (or 22362717 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

Adding to 23011225503 its reverse (30552211032), we get a palindrome (53563436535).

The spelling of 23011225503 in words is "twenty-three billion, eleven million, two hundred twenty-five thousand, five hundred three".