23509065003 has 16 divisors (see below), whose sum is σ = 32715594240. Its totient is φ = 14987928384.

The previous prime is 23509064987. The next prime is 23509065023. The reversal of 23509065003 is 30056090532.

It is not a de Polignac number, because 23509065003 - 2⁴ = 23509064987 is a prime.

It is a super-2 number, since 2×23509065003² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23509065023) 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, 292575 + ... + 364167.

It is an arithmetic number, because the mean of its divisors is an integer number (2044724640).

Almost surely, 2^23509065003 is an apocalyptic number.

23509065003 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

23509065003 is a deficient number, since it is larger than the sum of its proper divisors (9206529237).

23509065003 is a wasteful number, since it uses less digits than its factorization.

23509065003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76378.

The product of its (nonzero) digits is 24300, while the sum is 33.

The spelling of 23509065003 in words is "twenty-three billion, five hundred nine million, sixty-five thousand, three".