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10001010101101 = 64508315503447
BaseRepresentation
bin1001000110001000101010…
…1001111000101101101101
31022102002100120220201001021
42101202022221320231231
52302324032041213401
633134222311014141
72051356232145415
oct221421251705555
938362316821037
1010001010101101
11320644a526a18
12115631a06a351
135771254c1296
142680a1349645
1512523896c2a1
hex9188aa78b6d

10001010101101 has 4 divisors (see below), whose sum is σ = 10001026249632. Its totient is φ = 10000993952572.

The previous prime is 10001010101099. The next prime is 10001010101107. The reversal of 10001010101101 is 10110101010001.

It is a happy number.

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 10001010101101 - 21 = 10001010101099 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 (10001010101107) 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, 7106641 + ... + 8396806.

It is an arithmetic number, because the mean of its divisors is an integer number (2500256562408).

Almost surely, 210001010101101 is an apocalyptic number.

It is an amenable number.

10001010101101 is a deficient number, since it is larger than the sum of its proper divisors (16148531).

10001010101101 is an equidigital number, since it uses as much as digits as its factorization.

10001010101101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16148530.

The product of its (nonzero) digits is 1, while the sum is 7.

Adding to 10001010101101 its reverse (10110101010001), we get a palindrome (20111111111102).

The spelling of 10001010101101 in words is "ten trillion, one billion, ten million, one hundred one thousand, one hundred one".

Divisors: 1 645083 15503447 10001010101101