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1010101020001 = 19319901173209
BaseRepresentation
bin11101011001011101011…
…01100110010101100001
310120120020200021101222221
432230232231212111201
5113022141330120001
62052011202231041
7132656150001643
oct16545655462541
93516220241887
101010101020001
1135a421768807
12143920955481
1374337b95b58
1436c63b84893
151b41d42b1a1
hexeb2eb66561

1010101020001 has 16 divisors (see below), whose sum is σ = 1097680268800. Its totient is φ = 925969968000.

The previous prime is 1010101019909. The next prime is 1010101020017. The reversal of 1010101020001 is 1000201010101.

It is a cyclic number.

It is not a de Polignac number, because 1010101020001 - 233 = 1001511085409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1010101020041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5745085 + ... + 5918293.

It is an arithmetic number, because the mean of its divisors is an integer number (68605016800).

Almost surely, 21010101020001 is an apocalyptic number.

It is an amenable number.

1010101020001 is a deficient number, since it is larger than the sum of its proper divisors (87579248799).

1010101020001 is a wasteful number, since it uses less digits than its factorization.

1010101020001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183160.

The product of its (nonzero) digits is 2, while the sum is 7.

Adding to 1010101020001 its reverse (1000201010101), we get a palindrome (2010302030102).

The spelling of 1010101020001 in words is "one trillion, ten billion, one hundred one million, twenty thousand, one".

Divisors: 1 19 31 589 9901 173209 188119 306931 3290971 5369479 5831689 102020101 1714942309 32583903871 53163211579 1010101020001