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10201010011001 = 23813428379877
BaseRepresentation
bin1001010001110001101110…
…0100111111101101111001
31100010012120221000210221122
42110130123210333231321
52314113132030323001
633410140155115025
72101666352265635
oct224343344775571
940105527023848
1010201010011001
113283251236457
121189035742a75
1358cc497ab434
14273a35405dc5
1512a541dc4b1b
hex9471b93fb79

10201010011001 has 4 divisors (see below), whose sum is σ = 10201438414692. Its totient is φ = 10200581607312.

The previous prime is 10201010010943. The next prime is 10201010011037. The reversal of 10201010011001 is 10011001010201.

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 2480864405776 + 7720145605225 = 1575076^2 + 2778515^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10201010011001 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10201010011001.

It is not an unprimeable number, because it can be changed into a prime (10201010011081) 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, 214166126 + ... + 214213751.

It is an arithmetic number, because the mean of its divisors is an integer number (2550359603673).

Almost surely, 210201010011001 is an apocalyptic number.

It is an amenable number.

10201010011001 is a deficient number, since it is larger than the sum of its proper divisors (428403691).

10201010011001 is an equidigital number, since it uses as much as digits as its factorization.

10201010011001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428403690.

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

Adding to 10201010011001 its reverse (10011001010201), we get a palindrome (20212011021202).

The spelling of 10201010011001 in words is "ten trillion, two hundred one billion, ten million, eleven thousand, one".

Divisors: 1 23813 428379877 10201010011001