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11020102101 = 321224455789
BaseRepresentation
bin10100100001101100…
…10110100111010101
31001110000021012010200
422100312112213111
5140032121231401
65021303011113
7540042215361
oct122066264725
931400235120
1011020102101
1147456188a8
122176739a99
131068145398
147678242a1
15447710686
hex290d969d5

11020102101 has 6 divisors (see below), whose sum is σ = 15917925270. Its totient is φ = 7346734728.

The previous prime is 11020102097. The next prime is 11020102129. The reversal of 11020102101 is 10120102011.

It is a happy number.

11020102101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 7000668900 + 4019433201 = 83670^2 + 63399^2 .

It is not a de Polignac number, because 11020102101 - 22 = 11020102097 is a prime.

It is a super-2 number, since 2×110201021012 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 1224455789 = 11020102101 / (1 + 1 + 0 + 2 + 0 + 1 + 0 + 2 + 1 + 0 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11020102001) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 612227886 + ... + 612227903.

It is an arithmetic number, because the mean of its divisors is an integer number (2652987545).

Almost surely, 211020102101 is an apocalyptic number.

It is an amenable number.

11020102101 is a deficient number, since it is larger than the sum of its proper divisors (4897823169).

11020102101 is a wasteful number, since it uses less digits than its factorization.

11020102101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1224455795 (or 1224455792 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 11020102101 its reverse (10120102011), we get a palindrome (21140204112).

The spelling of 11020102101 in words is "eleven billion, twenty million, one hundred two thousand, one hundred one".

Divisors: 1 3 9 1224455789 3673367367 11020102101