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101021101211 = 1811123496997
BaseRepresentation
bin101111000010101010…
…0111010110010011011
3100122202100000122210002
41132011110322302123
53123342400214321
6114224120443215
710204253122652
oct1360524726233
9318670018702
10101021101211
113992a8615a8
12176b391950b
1396ac227344
144c64902199
152963bd820b
hex178553ac9b

101021101211 has 8 divisors (see below), whose sum is σ = 101669886864. Its totient is φ = 100373312160.

The previous prime is 101021101151. The next prime is 101021101229. The reversal of 101021101211 is 112101120101.

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-101021101211 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101021101192 and 101021101201.

It is not an unprimeable number, because it can be changed into a prime (101021106211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45236 + ... + 451761.

It is an arithmetic number, because the mean of its divisors is an integer number (12708735858).

Almost surely, 2101021101211 is an apocalyptic number.

101021101211 is a deficient number, since it is larger than the sum of its proper divisors (648785653).

101021101211 is a wasteful number, since it uses less digits than its factorization.

101021101211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498301.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 101021101211 its reverse (112101120101), we get a palindrome (213122221312).

The spelling of 101021101211 in words is "one hundred one billion, twenty-one million, one hundred one thousand, two hundred eleven".

Divisors: 1 181 1123 203263 496997 89956457 558127631 101021101211