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10020102112111 = 721361257871223
BaseRepresentation
bin1001000111001111110010…
…1000001000001101101111
31022110220122010220100120011
42101303330220020031233
52303132132120041421
633151101003034051
72052633320441200
oct221637450101557
938426563810504
1010020102112111
113213557467413
121159b67b0b927
13578b78a36110
14268d92bd55a7
151259a4b2e4e1
hex91cfca0836f

10020102112111 has 24 divisors (see below), whose sum is σ = 12758436678624. Its totient is φ = 7798025753280.

The previous prime is 10020102112109. The next prime is 10020102112213. The reversal of 10020102112111 is 11121120102001.

It is a happy number.

10020102112111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10020102112111 - 21 = 10020102112109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 10020102112091 and 10020102112100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10020102112411) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 128896755 + ... + 128974468.

It is an arithmetic number, because the mean of its divisors is an integer number (531601528276).

Almost surely, 210020102112111 is an apocalyptic number.

10020102112111 is a deficient number, since it is larger than the sum of its proper divisors (2738334566513).

10020102112111 is a wasteful number, since it uses less digits than its factorization.

10020102112111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257871311 (or 257871304 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 10020102112111 its reverse (11121120102001), we get a palindrome (21141222214112).

The spelling of 10020102112111 in words is "ten trillion, twenty billion, one hundred two million, one hundred twelve thousand, one hundred eleven".

Divisors: 1 7 13 49 61 91 427 637 793 2989 5551 38857 257871223 1805098561 3352325899 12635689927 15730144603 23466281293 110111012221 164263969051 204491879839 770777085547 1431443158873 10020102112111