Search a number
-
+
123130232343 = 3253258134659
BaseRepresentation
bin111001010101100100…
…0100011111000010111
3102202211011020220000200
41302223020203320113
54004132314413333
6132322032111543
711616165464136
oct1625310437027
9382734226020
10123130232343
1148245895aa8
121ba440955b3
13b7c3869061
145d60d6d91d
153309bc1c13
hex1cab223e17

123130232343 has 12 divisors (see below), whose sum is σ = 181210531320. Its totient is φ = 80538013296.

The previous prime is 123130232243. The next prime is 123130232363. The reversal of 123130232343 is 343232031321.

123130232343 is a `hidden beast` number, since 1 + 2 + 31 + 302 + 323 + 4 + 3 = 666.

It is not a de Polignac number, because 123130232343 - 225 = 123096677911 is a prime.

It is a super-2 number, since 2×1231302323432 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123130232363) 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 11 ways as a sum of consecutive naturals, for example, 129066853 + ... + 129067806.

It is an arithmetic number, because the mean of its divisors is an integer number (15100877610).

Almost surely, 2123130232343 is an apocalyptic number.

123130232343 is a deficient number, since it is larger than the sum of its proper divisors (58080298977).

123130232343 is a wasteful number, since it uses less digits than its factorization.

123130232343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258134718 (or 258134715 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 27.

Adding to 123130232343 its reverse (343232031321), we get a palindrome (466362263664).

The spelling of 123130232343 in words is "one hundred twenty-three billion, one hundred thirty million, two hundred thirty-two thousand, three hundred forty-three".

Divisors: 1 3 9 53 159 477 258134659 774403977 2323211931 13681136927 41043410781 123130232343