Search a number
-
+
23130130121 = 761113479371
BaseRepresentation
bin10101100010101010…
…011100011011001001
32012200222102100112222
4111202222130123021
5334332303130441
614343102543425
71446120601460
oct254252343311
965628370488
1023130130121
11989a3a011a
124596297b75
132248021c37
141195cc39d7
15905966d4b
hex562a9c6c9

23130130121 has 16 divisors (see below), whose sum is σ = 27105610368. Its totient is φ = 19328198400.

The previous prime is 23130130117. The next prime is 23130130123. The reversal of 23130130121 is 12103103132.

It is not a de Polignac number, because 23130130121 - 22 = 23130130117 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 23130130121.

It is not an unprimeable number, because it can be changed into a prime (23130130123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 191435 + ... + 287936.

It is an arithmetic number, because the mean of its divisors is an integer number (1694100648).

Almost surely, 223130130121 is an apocalyptic number.

It is an amenable number.

23130130121 is a deficient number, since it is larger than the sum of its proper divisors (3975480247).

23130130121 is a wasteful number, since it uses less digits than its factorization.

23130130121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479552.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 23130130121 its reverse (12103103132), we get a palindrome (35233233253).

The spelling of 23130130121 in words is "twenty-three billion, one hundred thirty million, one hundred thirty thousand, one hundred twenty-one".

Divisors: 1 7 61 113 427 791 6893 48251 479371 3355597 29241631 54168923 204691417 379182461 3304304303 23130130121