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120110110021 = 1118433592367
BaseRepresentation
bin110111111011100011…
…1101101010101000101
3102111000200100210001101
41233313013231111011
53431441142010041
6131102224300101
711451304042606
oct1576707552505
9374020323041
10120110110021
1146a36031440
121b340771631
13b431c5a825
145b55c09dad
1531ce9a5b31
hex1bf71ed545

120110110021 has 8 divisors (see below), whose sum is σ = 131036540544. Its totient is φ = 109184901120.

The previous prime is 120110109971. The next prime is 120110110063. The reversal of 120110110021 is 120011011021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-120110110021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120110110091) by changing a digit.

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, 93421 + ... + 498946.

It is an arithmetic number, because the mean of its divisors is an integer number (16379567568).

Almost surely, 2120110110021 is an apocalyptic number.

120110110021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

120110110021 is a deficient number, since it is larger than the sum of its proper divisors (10926430523).

120110110021 is a wasteful number, since it uses less digits than its factorization.

120110110021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610811.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 120110110021 its reverse (120011011021), we get a palindrome (240121121042).

The spelling of 120110110021 in words is "one hundred twenty billion, one hundred ten million, one hundred ten thousand, twenty-one".

Divisors: 1 11 18433 202763 592367 6516037 10919100911 120110110021