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121010110001101 = 1017726915505829
BaseRepresentation
bin11011100000111011011100…
…100111101110111111001101
3120212110110020121221201200201
4123200323130213232333031
5111330112201130013401
61105211135503453501
734326456222423106
oct3340733447567715
9525413217851621
10121010110001101
1135615110406612
12116a46a0bb7291
13526a287118689
1421c4cc60b13ad
15decb3d757b01
hex6e0edc9eefcd

121010110001101 has 8 divisors (see below), whose sum is σ = 122209819378200. Its totient is φ = 119810431790400.

The previous prime is 121010110001047. The next prime is 121010110001171. The reversal of 121010110001101 is 101100011010121.

It can be written as a sum of positive squares in 4 ways, for example, as 71656309650025 + 49353800351076 = 8465005^2 + 7025226^2 .

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 121010110001101 - 215 = 121010109968333 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 (121010110001171) 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, 51255 + ... + 15557083.

It is an arithmetic number, because the mean of its divisors is an integer number (15276227422275).

Almost surely, 2121010110001101 is an apocalyptic number.

It is an amenable number.

121010110001101 is a deficient number, since it is larger than the sum of its proper divisors (1199709377099).

121010110001101 is a wasteful number, since it uses less digits than its factorization.

121010110001101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15583199.

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

Adding to 121010110001101 its reverse (101100011010121), we get a palindrome (222110121011222).

The spelling of 121010110001101 in words is "one hundred twenty-one trillion, ten billion, one hundred ten million, one thousand, one hundred one".

Divisors: 1 101 77269 7804169 15505829 1566088729 1198119901001 121010110001101