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23103022231 = 29796655939
BaseRepresentation
bin10101100001000011…
…000010010010010111
32012122002102010112001
4111201003002102113
5334303333202411
614340253540131
71445341306642
oct254103022227
965562363461
1023103022231
119886065603
1245891a4647
132242520473
141192468a59
159033aedc1
hex5610c2497

23103022231 has 4 divisors (see below), whose sum is σ = 23899678200. Its totient is φ = 22306366264.

The previous prime is 23103022199. The next prime is 23103022303. The reversal of 23103022231 is 13222030132.

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 23103022231 - 25 = 23103022199 is a prime.

It is a super-2 number, since 2×231030222312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23103022199 and 23103022208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23103020231) 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, 398327941 + ... + 398327998.

It is an arithmetic number, because the mean of its divisors is an integer number (5974919550).

Almost surely, 223103022231 is an apocalyptic number.

23103022231 is a deficient number, since it is larger than the sum of its proper divisors (796655969).

23103022231 is an equidigital number, since it uses as much as digits as its factorization.

23103022231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796655968.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 23103022231 its reverse (13222030132), we get a palindrome (36325052363).

The spelling of 23103022231 in words is "twenty-three billion, one hundred three million, twenty-two thousand, two hundred thirty-one".

Divisors: 1 29 796655939 23103022231