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10120312001 = 66191528979
BaseRepresentation
bin10010110110011011…
…11011010011000001
3222010022011010011102
421123031323103001
5131211244441001
64352121224145
7505535142542
oct113315732301
928108133142
1010120312001
11432371a218
121b65332055
13c538c33c7
146c01204c9
153e3725e6b
hex25b37b4c1

10120312001 has 4 divisors (see below), whose sum is σ = 10121847600. Its totient is φ = 10118776404.

The previous prime is 10120311997. The next prime is 10120312031. The reversal of 10120312001 is 10021302101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10120312001 - 22 = 10120311997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10120312031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 757871 + ... + 771108.

It is an arithmetic number, because the mean of its divisors is an integer number (2530461900).

Almost surely, 210120312001 is an apocalyptic number.

It is an amenable number.

10120312001 is a deficient number, since it is larger than the sum of its proper divisors (1535599).

10120312001 is an equidigital number, since it uses as much as digits as its factorization.

10120312001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1535598.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 10120312001 its reverse (10021302101), we get a palindrome (20141614102).

The spelling of 10120312001 in words is "ten billion, one hundred twenty million, three hundred twelve thousand, one".

Divisors: 1 6619 1528979 10120312001