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23312012011112 = 2311647340925263
BaseRepresentation
bin1010100110011110000000…
…01100011110011001101000
310001112121101012101012100102
411103033000030132121220
511023421000033323422
6121325220201524532
74624144250432036
oct523170014363150
9101477335335312
1023312012011112
117478629045820
1227460357a3748
13100140c421106
145a844371d556
152a65eb5cd192
hex1533c031e668

23312012011112 has 32 divisors (see below), whose sum is σ = 47691028644480. Its totient is φ = 10594731826560.

The previous prime is 23312012010971. The next prime is 23312012011121. The reversal of 23312012011112 is 21111021021332.

It is a super-2 number, since 2×233120120111122 (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19893008 + ... + 21032255.

It is an arithmetic number, because the mean of its divisors is an integer number (1490344645140).

Almost surely, 223312012011112 is an apocalyptic number.

23312012011112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

23312012011112 is an abundant number, since it is smaller than the sum of its proper divisors (24379016633368).

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

23312012011112 is a wasteful number, since it uses less digits than its factorization.

23312012011112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40931753 (or 40931749 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 23312012011112 its reverse (21111021021332), we get a palindrome (44423033032444).

The spelling of 23312012011112 in words is "twenty-three trillion, three hundred twelve billion, twelve million, eleven thousand, one hundred twelve".

Divisors: 1 2 4 8 11 22 44 88 6473 12946 25892 51784 71203 142406 284812 569624 40925263 81850526 163701052 327402104 450177893 900355786 1800711572 3601423144 264909227399 529818454798 1059636909596 2119273819192 2914001501389 5828003002778 11656006005556 23312012011112