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123331313321 = 718527203713
BaseRepresentation
bin111001011011100011…
…1100111111010101001
3102210100011121212021022
41302313013213322221
54010040304011241
6132354014022225
711624156603066
oct1626707477251
9383304555238
10123331313321
1148339347127
121ba9b4a7975
13b826411398
145d7d953c6d
15331c69154b
hex1cb71e7ea9

123331313321 has 8 divisors (see below), whose sum is σ = 125083655424. Its totient is φ = 121579395840.

The previous prime is 123331313297. The next prime is 123331313327. The reversal of 123331313321 is 123313133321.

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

It is a cyclic number.

It is not a de Polignac number, because 123331313321 - 230 = 122257571497 is a prime.

It is a super-2 number, since 2×1233313133212 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123331313327) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 503561 + ... + 707273.

It is an arithmetic number, because the mean of its divisors is an integer number (15635456928).

Almost surely, 2123331313321 is an apocalyptic number.

It is an amenable number.

123331313321 is a deficient number, since it is larger than the sum of its proper divisors (1752342103).

123331313321 is an equidigital number, since it uses as much as digits as its factorization.

123331313321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212311.

The product of its digits is 2916, while the sum is 26.

Adding to 123331313321 its reverse (123313133321), we get a palindrome (246644446642).

The spelling of 123331313321 in words is "one hundred twenty-three billion, three hundred thirty-one million, three hundred thirteen thousand, three hundred twenty-one".

Divisors: 1 71 8527 203713 605417 14463623 1737060751 123331313321