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102101101001 = 618320166127
BaseRepresentation
bin101111100010110110…
…0110010100111001001
3100202112121020022222022
41133011230302213021
53133100340213001
6114523220534225
710243106016254
oct1370554624711
9322477208868
10102101101001
113a334456409
1217955551375
139821bc4783
144d2811609b
1529c891d11b
hex17c5b329c9

102101101001 has 8 divisors (see below), whose sum is σ = 105025194624. Its totient is φ = 99217339920.

The previous prime is 102101100991. The next prime is 102101101013. The reversal of 102101101001 is 100101101201.

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 a de Polignac number, because none of the positive numbers 2k-102101101001 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 102101101001.

It is not an unprimeable number, because it can be changed into a prime (102101101301) 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, 10078001 + ... + 10088126.

It is an arithmetic number, because the mean of its divisors is an integer number (13128149328).

Almost surely, 2102101101001 is an apocalyptic number.

It is an amenable number.

102101101001 is a deficient number, since it is larger than the sum of its proper divisors (2924093623).

102101101001 is an equidigital number, since it uses as much as digits as its factorization.

102101101001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20166271.

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 102101101001 its reverse (100101101201), we get a palindrome (202202202202).

The spelling of 102101101001 in words is "one hundred two billion, one hundred one million, one hundred one thousand, one".

Divisors: 1 61 83 5063 20166127 1230133747 1673788541 102101101001