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120312312331112 = 23111367185367399
BaseRepresentation
bin11011010110110001100100…
…101000110111101101101000
3120202222202002220112021202222
4123112301210220313231220
5111232144103424043422
61103514414022013212
734225164154201556
oct3326614450675550
9522882086467688
10120312312331112
113537618a859070
12115b13b9b77208
1352195300177b5
14219d20b492bd6
15dd98ecbcc842
hex6d6c64a37b68

120312312331112 has 16 divisors (see below), whose sum is σ = 246093366132000. Its totient is φ = 54687414695920.

The previous prime is 120312312331103. The next prime is 120312312331129. The reversal of 120312312331112 is 211133213213021.

It is a super-2 number, since 2×1203123123311122 (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 683592683612 + ... + 683592683787.

It is an arithmetic number, because the mean of its divisors is an integer number (15380835383250).

Almost surely, 2120312312331112 is an apocalyptic number.

It is an amenable number.

120312312331112 is an abundant number, since it is smaller than the sum of its proper divisors (125781053800888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120312312331112 is a wasteful number, since it uses less digits than its factorization.

120312312331112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1367185367416 (or 1367185367412 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

Adding to 120312312331112 its reverse (211133213213021), we get a palindrome (331445525544133).

The spelling of 120312312331112 in words is "one hundred twenty trillion, three hundred twelve billion, three hundred twelve million, three hundred thirty-one thousand, one hundred twelve".

Divisors: 1 2 4 8 11 22 44 88 1367185367399 2734370734798 5468741469596 10937482939192 15039039041389 30078078082778 60156156165556 120312312331112