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20121123314 = 2312111538077
BaseRepresentation
bin10010101111010011…
…111111100111110010
31220221021102222012102
4102233103333213302
5312202001421224
613124333300402
71311422504045
oct225723774762
956837388172
1020121123314
118595938836
123a96634702
131b88805c36
14d8c414c5c
157cb6e44ae
hex4af4ff9f2

20121123314 has 16 divisors (see below), whose sum is σ = 31302963456. Its totient is φ = 9689878800.

The previous prime is 20121123241. The next prime is 20121123391. The reversal of 20121123314 is 41332112102.

It is an unprimeable number.

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, 755957 + ... + 782120.

It is an arithmetic number, because the mean of its divisors is an integer number (1956435216).

Almost surely, 220121123314 is an apocalyptic number.

20121123314 is a deficient number, since it is larger than the sum of its proper divisors (11181840142).

20121123314 is a wasteful number, since it uses less digits than its factorization.

20121123314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1538321.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 20121123314 its reverse (41332112102), we get a palindrome (61453235416).

The spelling of 20121123314 in words is "twenty billion, one hundred twenty-one million, one hundred twenty-three thousand, three hundred fourteen".

Divisors: 1 2 31 62 211 422 6541 13082 1538077 3076154 47680387 95360774 324534247 649068494 10060561657 20121123314