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1101101010001 = 1946956556629
BaseRepresentation
bin10000000001011110101…
…111000000110001010001
310220021010121210212111221
4100001132233000301101
5121020023324310001
62201501104005041
7142360211105146
oct20013657006121
93807117725457
101101101010001
11394a798a6113
12159498600781
137caaac20895
143b4177ca3cd
151d9974861a1
hex1005ebc0c51

1101101010001 has 4 divisors (see below), whose sum is σ = 1101157586100. Its totient is φ = 1101044433904.

The previous prime is 1101101009977. The next prime is 1101101010017. The reversal of 1101101010001 is 1000101011011.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 476961509376 + 624139500625 = 690624^2 + 790025^2 .

It is a cyclic number.

It is not a de Polignac number, because 1101101010001 - 219 = 1101100485713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1101101010071) 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, 28258846 + ... + 28297783.

It is an arithmetic number, because the mean of its divisors is an integer number (275289396525).

Almost surely, 21101101010001 is an apocalyptic number.

It is an amenable number.

1101101010001 is a deficient number, since it is larger than the sum of its proper divisors (56576099).

1101101010001 is an equidigital number, since it uses as much as digits as its factorization.

1101101010001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56576098.

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

Adding to 1101101010001 its reverse (1000101011011), we get a palindrome (2101202021012).

The spelling of 1101101010001 in words is "one trillion, one hundred one billion, one hundred one million, ten thousand, one".

Divisors: 1 19469 56556629 1101101010001