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3123013230120 = 233573139545863
BaseRepresentation
bin101101011100100010000…
…110000001111000101000
3102001120001011100211121010
4231130202012001320220
5402131412341330440
610350405323543520
7441426115314000
oct55344206017050
912046034324533
103123013230120
11aa450a608223
1242531698aba0
13198664081674
14ab2244cb000
1556384003580
hex2d722181e28

3123013230120 has 256 divisors, whose sum is σ = 11004618240000. Its totient is φ = 708694818048.

The previous prime is 3123013230097. The next prime is 3123013230151. The reversal of 3123013230120 is 210323103213.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5448309 + ... + 5994171.

It is an arithmetic number, because the mean of its divisors is an integer number (42986790000).

Almost surely, 23123013230120 is an apocalyptic number.

3123013230120 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3123013230120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5502309120000).

3123013230120 is an abundant number, since it is smaller than the sum of its proper divisors (7881605009880).

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

3123013230120 is a wasteful number, since it uses less digits than its factorization.

3123013230120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546037 (or 546019 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 3123013230120 its reverse (210323103213), we get a palindrome (3333336333333).

The spelling of 3123013230120 in words is "three trillion, one hundred twenty-three billion, thirteen million, two hundred thirty thousand, one hundred twenty".