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1010211110101 = 4013946163841
BaseRepresentation
bin11101011001101010100…
…01100011110011010101
310120120112100102120020001
432230311101203303111
5113022403021010401
62052030134011301
7132661654520224
oct16546521436325
93516470376201
101010211110101
1135a478921066
121439517a6b31
137435493021b
1436c74640cbb
151b427e25601
hexeb35463cd5

1010211110101 has 8 divisors (see below), whose sum is σ = 1012771867608. Its totient is φ = 1007650560000.

The previous prime is 1010211110087. The next prime is 1010211110123. The reversal of 1010211110101 is 1010111120101.

It can be written as a sum of positive squares in 4 ways, for example, as 429149459025 + 581061651076 = 655095^2 + 762274^2 .

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-1010211110101 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 (1010211110191) 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, 15791941 + ... + 15855781.

It is an arithmetic number, because the mean of its divisors is an integer number (126596483451).

Almost surely, 21010211110101 is an apocalyptic number.

It is an amenable number.

1010211110101 is a deficient number, since it is larger than the sum of its proper divisors (2560757507).

1010211110101 is an equidigital number, since it uses as much as digits as its factorization.

1010211110101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103703.

The product of its (nonzero) digits is 2, while the sum is 10.

Adding to 1010211110101 its reverse (1010111120101), we get a palindrome (2020322230202).

The spelling of 1010211110101 in words is "one trillion, ten billion, two hundred eleven million, one hundred ten thousand, one hundred one".

Divisors: 1 401 39461 63841 15823861 25600241 2519229701 1010211110101