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121110310201 = 138778727413
BaseRepresentation
bin111000011001010111…
…1001010110100111001
3102120121101102012202111
41300302233022310321
53441013214411301
6131345354132321
711515140436246
oct1606257126471
9376541365674
10121110310201
11473a9681661
121b57b7210a1
13b561237b5a
145c0c9aa5cd
15323c6c6551
hex1c32bcad39

121110310201 has 4 divisors (see below), whose sum is σ = 121119051492. Its totient is φ = 121101568912.

The previous prime is 121110310193. The next prime is 121110310219. The reversal of 121110310201 is 102013011121.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 54533925625 + 66576384576 = 233525^2 + 258024^2 .

It is a cyclic number.

It is not a de Polignac number, because 121110310201 - 23 = 121110310193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121110310261) 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, 4349830 + ... + 4377583.

It is an arithmetic number, because the mean of its divisors is an integer number (30279762873).

Almost surely, 2121110310201 is an apocalyptic number.

It is an amenable number.

121110310201 is a deficient number, since it is larger than the sum of its proper divisors (8741291).

121110310201 is an equidigital number, since it uses as much as digits as its factorization.

121110310201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8741290.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 121110310201 its reverse (102013011121), we get a palindrome (223123321322).

The spelling of 121110310201 in words is "one hundred twenty-one billion, one hundred ten million, three hundred ten thousand, two hundred one".

Divisors: 1 13877 8727413 121110310201