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100111112011 = 211394735849
BaseRepresentation
bin101110100111100010…
…1100101011101001011
3100120101220201102021101
41131033011211131023
53120011421041021
6113553532322231
710142563261141
oct1351705453513
9316356642241
10100111112011
1139503127209
121749b013377
139595843cb1
144bb9b05591
15290dd86a91
hex174f16574b

100111112011 has 4 divisors (see below), whose sum is σ = 100115869000. Its totient is φ = 100106355024.

The previous prime is 100111112009. The next prime is 100111112039. The reversal of 100111112011 is 110211111001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110211111001 = 349315791149.

It is a cyclic number.

It is not a de Polignac number, because 100111112011 - 21 = 100111112009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100111112051) 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, 2346786 + ... + 2389063.

It is an arithmetic number, because the mean of its divisors is an integer number (25028967250).

Almost surely, 2100111112011 is an apocalyptic number.

100111112011 is a deficient number, since it is larger than the sum of its proper divisors (4756989).

100111112011 is an equidigital number, since it uses as much as digits as its factorization.

100111112011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4756988.

The product of its (nonzero) digits is 2, while the sum is 10.

Adding to 100111112011 its reverse (110211111001), we get a palindrome (210322223012).

The spelling of 100111112011 in words is "one hundred billion, one hundred eleven million, one hundred twelve thousand, eleven".

Divisors: 1 21139 4735849 100111112011