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10011111010001 = 23435265696087
BaseRepresentation
bin1001000110101110010010…
…1101110010111011010001
31022110001102112120001011022
42101223210231302323101
52303010223404310001
633143012500325225
72052164443356413
oct221534455627321
938401375501138
1010011111010001
11320a7631a3312
1211582789a3815
1357807507cb5a
1426877ca589b3
1512562a60e11b
hex91ae4b72ed1

10011111010001 has 4 divisors (see below), whose sum is σ = 10446376706112. Its totient is φ = 9575845313892.

The previous prime is 10011111009989. The next prime is 10011111010039. The reversal of 10011111010001 is 10001011111001.

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 not a de Polignac number, because 10011111010001 - 214 = 10011110993617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10011111010081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 217632848021 + ... + 217632848066.

It is an arithmetic number, because the mean of its divisors is an integer number (2611594176528).

Almost surely, 210011111010001 is an apocalyptic number.

It is an amenable number.

10011111010001 is a deficient number, since it is larger than the sum of its proper divisors (435265696111).

10011111010001 is an equidigital number, since it uses as much as digits as its factorization.

10011111010001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435265696110.

The product of its (nonzero) digits is 1, while the sum is 8.

Adding to 10011111010001 its reverse (10001011111001), we get a palindrome (20012122121002).

The spelling of 10011111010001 in words is "ten trillion, eleven billion, one hundred eleven million, ten thousand, one".

Divisors: 1 23 435265696087 10011111010001