23142903217 has 16 divisors (see below), whose sum is σ = 26713526400. Its totient is φ = 19638702720.

The previous prime is 23142903191. The next prime is 23142903229. The reversal of 23142903217 is 71230924132.

It is a de Polignac number, because none of the positive numbers 2^k-23142903217 is a prime.

It is a super-2 number, since 2×23142903217² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23142903247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 971742 + ... + 995272.

It is an arithmetic number, because the mean of its divisors is an integer number (1669595400).

Almost surely, 2^23142903217 is an apocalyptic number.

It is an amenable number.

23142903217 is a deficient number, since it is larger than the sum of its proper divisors (3570623183).

23142903217 is a wasteful number, since it uses less digits than its factorization.

23142903217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24936.

The product of its (nonzero) digits is 18144, while the sum is 34.

The spelling of 23142903217 in words is "twenty-three billion, one hundred forty-two million, nine hundred three thousand, two hundred seventeen".