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1201103402209 = 3138745271039
BaseRepresentation
bin10001011110100111010…
…101110111010011100001
311020211020221221202020221
4101132213111313103201
5124134324432332314
62315440154203041
7152530314316054
oct21364725672341
94224227852227
101201103402209
11423426615547
12174947123481
138935708a119
14421c2cb0a9b
152139b9e4824
hex117a75774e1

1201103402209 has 4 divisors (see below), whose sum is σ = 1239848673280. Its totient is φ = 1162358131140.

The previous prime is 1201103402207. The next prime is 1201103402231. The reversal of 1201103402209 is 9022043011021.

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 a cyclic number.

It is not a de Polignac number, because 1201103402209 - 21 = 1201103402207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201103402207) 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, 19372635489 + ... + 19372635550.

It is an arithmetic number, because the mean of its divisors is an integer number (309962168320).

Almost surely, 21201103402209 is an apocalyptic number.

It is an amenable number.

1201103402209 is a deficient number, since it is larger than the sum of its proper divisors (38745271071).

1201103402209 is an equidigital number, since it uses as much as digits as its factorization.

1201103402209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38745271070.

The product of its (nonzero) digits is 864, while the sum is 25.

The spelling of 1201103402209 in words is "one trillion, two hundred one billion, one hundred three million, four hundred two thousand, two hundred nine".

Divisors: 1 31 38745271039 1201103402209