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23130131223 = 37741996001
BaseRepresentation
bin10101100010101010…
…011100101100010111
32012200222102102001210
4111202222130230113
5334332303144343
614343102552503
71446120604623
oct254252345427
965628372053
1023130131223
11989a3a0a31
124596298733
1322480225a4
141195cc4183
15905967333
hex562a9cb17

23130131223 has 8 divisors (see below), whose sum is σ = 30844189936. Its totient is φ = 15418080000.

The previous prime is 23130131179. The next prime is 23130131267. The reversal of 23130131223 is 32213103132.

It is an interprime number because it is at equal distance from previous prime (23130131179) and next prime (23130131267).

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

It is not a de Polignac number, because 23130131223 - 221 = 23128034071 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23130131223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23130139223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 474778 + ... + 521223.

It is an arithmetic number, because the mean of its divisors is an integer number (3855523742).

Almost surely, 223130131223 is an apocalyptic number.

23130131223 is a deficient number, since it is larger than the sum of its proper divisors (7714058713).

23130131223 is an equidigital number, since it uses as much as digits as its factorization.

23130131223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1003745.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 23130131223 its reverse (32213103132), we get a palindrome (55343234355).

The spelling of 23130131223 in words is "twenty-three billion, one hundred thirty million, one hundred thirty-one thousand, two hundred twenty-three".

Divisors: 1 3 7741 23223 996001 2988003 7710043741 23130131223