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123210232230 = 2356761298623
BaseRepresentation
bin111001010111111100…
…1101111000110100110
3102210000201210022020110
41302233321233012212
54004313304412410
6132334010513450
711621156460021
oct1625771570646
9383021708213
10123210232230
1148286a67108
121ba66a35886
13b8072c9377
145d6b8361b8
153311c25720
hex1cafe6f1a6

123210232230 has 32 divisors (see below), whose sum is σ = 300118063104. Its totient is φ = 32365672416.

The previous prime is 123210232183. The next prime is 123210232267. The reversal of 123210232230 is 32232012321.

It is a happy number.

It is a super-2 number, since 2×1232102322302 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123210232197 and 123210232206.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30647302 + ... + 30651321.

It is an arithmetic number, because the mean of its divisors is an integer number (9378689472).

Almost surely, 2123210232230 is an apocalyptic number.

123210232230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123210232230 is an abundant number, since it is smaller than the sum of its proper divisors (176907830874).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123210232230 is a wasteful number, since it uses less digits than its factorization.

123210232230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61298700.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 123210232230 its reverse (32232012321), we get a palindrome (155442244551).

The spelling of 123210232230 in words is "one hundred twenty-three billion, two hundred ten million, two hundred thirty-two thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 67 134 201 335 402 670 1005 2010 61298623 122597246 183895869 306493115 367791738 612986230 919479345 1838958690 4107007741 8214015482 12321023223 20535038705 24642046446 41070077410 61605116115 123210232230