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102000311111 = 281543766763
BaseRepresentation
bin101111011111110110…
…0010011101101000111
3100202021120120200020102
41132333230103231013
53132344034423421
6114505220354315
710240443224216
oct1367754235507
9322246520212
10102000311111
113a292575486
121792784599b
13980706559a
144d1899b07d
1529beb5e60b
hex17bfb13b47

102000311111 has 8 divisors (see below), whose sum is σ = 102383662224. Its totient is φ = 101617104960.

The previous prime is 102000311107. The next prime is 102000311143. The reversal of 102000311111 is 111113000201.

It is a happy number.

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 102000311111 - 22 = 102000311107 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102000311092 and 102000311101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102000319111) 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, 1494416 + ... + 1561178.

It is an arithmetic number, because the mean of its divisors is an integer number (12797957778).

Almost surely, 2102000311111 is an apocalyptic number.

102000311111 is a deficient number, since it is larger than the sum of its proper divisors (383351113).

102000311111 is an equidigital number, since it uses as much as digits as its factorization.

102000311111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72481.

The product of its (nonzero) digits is 6, while the sum is 11.

Adding to 102000311111 its reverse (111113000201), we get a palindrome (213113311312).

The spelling of 102000311111 in words is "one hundred two billion, three hundred eleven thousand, one hundred eleven".

Divisors: 1 281 5437 66763 1527797 18760403 362990431 102000311111