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123044404331 = 191953367577
BaseRepresentation
bin111001010011000000…
…1001001110001101011
3102202121011202101010102
41302212001021301223
54003443331414311
6132305324340015
711614104115532
oct1624601116153
9382534671112
10123044404331
11482013a4162
121ba1b3a460b
13b7abb48054
145d537cb319
1533023bb43b
hex1ca6049c6b

123044404331 has 8 divisors (see below), whose sum is σ = 123703421184. Its totient is φ = 122385542080.

The previous prime is 123044404319. The next prime is 123044404337. The reversal of 123044404331 is 133404440321.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-123044404331 is a prime.

It is a super-2 number, since 2×1230444043312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123044404294 and 123044404303.

It is not an unprimeable number, because it can be changed into a prime (123044404337) 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 7 ways as a sum of consecutive naturals, for example, 1787015 + ... + 1854591.

It is an arithmetic number, because the mean of its divisors is an integer number (15462927648).

Almost surely, 2123044404331 is an apocalyptic number.

123044404331 is a deficient number, since it is larger than the sum of its proper divisors (659016853).

123044404331 is an equidigital number, since it uses as much as digits as its factorization.

123044404331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77301.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 123044404331 its reverse (133404440321), we get a palindrome (256448844652).

The spelling of 123044404331 in words is "one hundred twenty-three billion, forty-four million, four hundred four thousand, three hundred thirty-one".

Divisors: 1 191 9533 67577 1820803 12907207 644211541 123044404331