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102102010111 = 829897113729
BaseRepresentation
bin101111100010111000…
…0010000100011111111
3100202112122221112001001
41133011300100203333
53133101103310421
6114523252231131
710243116523603
oct1370560204377
9322478845031
10102102010111
113a334a17442
121795590b4a7
1398221524ca
144d282b1503
1529c8a4c691
hex17c5c108ff

102102010111 has 8 divisors (see below), whose sum is σ = 102244014800. Its totient is φ = 101960052480.

The previous prime is 102102010061. The next prime is 102102010123. The reversal of 102102010111 is 111010201201.

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

It is a cyclic number.

It is not a de Polignac number, because 102102010111 - 215 = 102101977343 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 (102102010181) 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, 7430095 + ... + 7443823.

It is an arithmetic number, because the mean of its divisors is an integer number (12780501850).

Almost surely, 2102102010111 is an apocalyptic number.

102102010111 is a deficient number, since it is larger than the sum of its proper divisors (142004689).

102102010111 is an equidigital number, since it uses as much as digits as its factorization.

102102010111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23529.

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

Adding to 102102010111 its reverse (111010201201), we get a palindrome (213112211312).

The spelling of 102102010111 in words is "one hundred two billion, one hundred two million, ten thousand, one hundred eleven".

Divisors: 1 829 8971 13729 7436959 11381341 123162859 102102010111