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123130222322 = 261565111161
BaseRepresentation
bin111001010101100100…
…0100001011011110010
3102202211011020101021112
41302223020201123302
54004132314103242
6132322031553322
711616165423002
oct1625310413362
9382734211245
10123130222322
1148245889518
121ba4408b842
13b7c3864623
145d60d6a002
153309bbdc82
hex1cab2216f2

123130222322 has 4 divisors (see below), whose sum is σ = 184695333486. Its totient is φ = 61565111160.

The previous prime is 123130222307. The next prime is 123130222333. The reversal of 123130222322 is 223222031321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 75719079241 + 47411143081 = 275171^2 + 217741^2 .

It is a super-2 number, since 2×1231302223222 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30782555579 + ... + 30782555582.

Almost surely, 2123130222322 is an apocalyptic number.

123130222322 is a deficient number, since it is larger than the sum of its proper divisors (61565111164).

123130222322 is an equidigital number, since it uses as much as digits as its factorization.

123130222322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61565111163.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 123130222322 its reverse (223222031321), we get a palindrome (346352253643).

The spelling of 123130222322 in words is "one hundred twenty-three billion, one hundred thirty million, two hundred twenty-two thousand, three hundred twenty-two".

Divisors: 1 2 61565111161 123130222322