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102011100023 = 714573014289
BaseRepresentation
bin101111100000001010…
…1011101101101110111
3100202022022212210211202
41133000111131231313
53132404320200043
6114510243523115
710240634020610
oct1370025355567
9322268783752
10102011100023
113a298674338
121792b38949b
139809372261
144d1a1a8c07
1529c0a911b8
hex17c055db77

102011100023 has 4 divisors (see below), whose sum is σ = 116584114320. Its totient is φ = 87438085728.

The previous prime is 102011100011. The next prime is 102011100041. The reversal of 102011100023 is 320001110201.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 102011100023 - 222 = 102006905719 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102011099977 and 102011100013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102011100053) 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, 7286507138 + ... + 7286507151.

It is an arithmetic number, because the mean of its divisors is an integer number (29146028580).

Almost surely, 2102011100023 is an apocalyptic number.

102011100023 is a deficient number, since it is larger than the sum of its proper divisors (14573014297).

102011100023 is an equidigital number, since it uses as much as digits as its factorization.

102011100023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14573014296.

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

Adding to 102011100023 its reverse (320001110201), we get a palindrome (422012210224).

The spelling of 102011100023 in words is "one hundred two billion, eleven million, one hundred thousand, twenty-three".

Divisors: 1 7 14573014289 102011100023