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1202011011101 = 1669720198329
BaseRepresentation
bin10001011111011101011…
…100000111100000011101
311020220121012210001121002
4101133131130013200131
5124143204304323401
62320110215320045
7152561645005115
oct21373534074035
94226535701532
101202011011101
1142385197453a
12174b5b080025
1389470118bc4
144226b64c045
1521401525a6b
hex117dd70781d

1202011011101 has 4 divisors (see below), whose sum is σ = 1202731211100. Its totient is φ = 1201290811104.

The previous prime is 1202011011083. The next prime is 1202011011119. The reversal of 1202011011101 is 1011101102021.

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

It is an interprime number because it is at equal distance from previous prime (1202011011083) and next prime (1202011011119).

It can be written as a sum of positive squares in 2 ways, for example, as 733593963001 + 468417048100 = 856501^2 + 684410^2 .

It is a cyclic number.

It is not a de Polignac number, because 1202011011101 - 210 = 1202011010077 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 (1202011011161) 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, 360097496 + ... + 360100833.

It is an arithmetic number, because the mean of its divisors is an integer number (300682802775).

Almost surely, 21202011011101 is an apocalyptic number.

It is an amenable number.

1202011011101 is a deficient number, since it is larger than the sum of its proper divisors (720199999).

1202011011101 is an equidigital number, since it uses as much as digits as its factorization.

1202011011101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720199998.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1202011011101 its reverse (1011101102021), we get a palindrome (2213112113122).

The spelling of 1202011011101 in words is "one trillion, two hundred two billion, eleven million, eleven thousand, one hundred one".

Divisors: 1 1669 720198329 1202011011101