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1110101010121 = 9391118209031
BaseRepresentation
bin10000001001110111001…
…011010010011011001001
310221010100211220020200201
4100021313023102123021
5121141441324310441
62205550125132201
7143126223616435
oct20116713223311
93833324806621
101110101010121
11398878097444
1215b18a6ba061
13808b36a0c3c
143ba2cc019c5
151dd22662c31
hex102772d26c9

1110101010121 has 4 divisors (see below), whose sum is σ = 1110219228544. Its totient is φ = 1109982791700.

The previous prime is 1110101010119. The next prime is 1110101010143. The reversal of 1110101010121 is 1210101010111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1110101010121 - 21 = 1110101010119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1110101010098 and 1110101010107.

It is not an unprimeable number, because it can be changed into a prime (1110101016121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59095125 + ... + 59113906.

It is an arithmetic number, because the mean of its divisors is an integer number (277554807136).

Almost surely, 21110101010121 is an apocalyptic number.

It is an amenable number.

1110101010121 is a deficient number, since it is larger than the sum of its proper divisors (118218423).

1110101010121 is an equidigital number, since it uses as much as digits as its factorization.

1110101010121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118218422.

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

Subtracting from 1110101010121 its sum of digits (10), we obtain a palindrome (1110101010111).

Adding to 1110101010121 its reverse (1210101010111), we get a palindrome (2320202020232).

The spelling of 1110101010121 in words is "one trillion, one hundred ten billion, one hundred one million, ten thousand, one hundred twenty-one".

Divisors: 1 9391 118209031 1110101010121