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3120312220123 = 72232768688749
BaseRepresentation
bin101101011010000001000…
…110011111100111011011
3102001022001220221022102211
4231122001012133213123
5402110344412020443
610345241315535551
7441302150153200
oct55320106374733
912038056838384
103120312220123
11aa33539a145a
124248a22ba5b7
131983236032b7
14ab0498b3ca7
1556276d1e19d
hex2d68119f9db

3120312220123 has 12 divisors (see below), whose sum is σ = 3787566210000. Its totient is φ = 2558268403152.

The previous prime is 3120312220121. The next prime is 3120312220139. The reversal of 3120312220123 is 3210222130213.

It is not a de Polignac number, because 3120312220123 - 21 = 3120312220121 is a prime.

It is a super-2 number, since 2×31203122201232 (a number of 26 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 = 3120312220094 and 3120312220103.

It is not an unprimeable number, because it can be changed into a prime (3120312220121) 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 11 ways as a sum of consecutive naturals, for example, 1384343248 + ... + 1384345501.

It is an arithmetic number, because the mean of its divisors is an integer number (315630517500).

Almost surely, 23120312220123 is an apocalyptic number.

3120312220123 is a deficient number, since it is larger than the sum of its proper divisors (667253989877).

3120312220123 is a wasteful number, since it uses less digits than its factorization.

3120312220123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2768688786 (or 2768688779 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 3120312220123 its reverse (3210222130213), we get a palindrome (6330534350336).

The spelling of 3120312220123 in words is "three trillion, one hundred twenty billion, three hundred twelve million, two hundred twenty thousand, one hundred twenty-three".

Divisors: 1 7 23 49 161 1127 2768688749 19380821243 63679841227 135665748701 445758888589 3120312220123