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123011605411631 = 319714086628531
BaseRepresentation
bin11011111110000011011111…
…000010110011011100101111
3121010112210110021200022020222
4123332003133002303130233
5112110410231441133011
61113342430144401555
734624203153622466
oct3376033702633457
9533483407608228
10123011605411631
1136216a24392472
12119685819162bb
135383c38426041
142253b173cb9dd
15e34c32b74ddb
hex6fe0df0b372f

123011605411631 has 8 divisors (see below), whose sum is σ = 127110493859328. Its totient is φ = 118920890223000.

The previous prime is 123011605411603. The next prime is 123011605411727. The reversal of 123011605411631 is 136114506110321.

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 123011605411631 - 214 = 123011605395247 is a prime.

It is a super-2 number, since 2×1230116054116312 (a number of 29 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 = 123011605411591 and 123011605411600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123011605411831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2043284165 + ... + 2043344366.

It is an arithmetic number, because the mean of its divisors is an integer number (15888811732416).

Almost surely, 2123011605411631 is an apocalyptic number.

123011605411631 is a deficient number, since it is larger than the sum of its proper divisors (4098888447697).

123011605411631 is an equidigital number, since it uses as much as digits as its factorization.

123011605411631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4086629533.

The product of its (nonzero) digits is 12960, while the sum is 35.

The spelling of 123011605411631 in words is "one hundred twenty-three trillion, eleven billion, six hundred five million, four hundred eleven thousand, six hundred thirty-one".

Divisors: 1 31 971 30101 4086628531 126685484461 3968116303601 123011605411631