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121001241001 = 711704242831
BaseRepresentation
bin111000010110000111…
…1000110100110101001
3102120022210011220221111
41300230033012212221
53440302304203001
6131330500310321
711512344402244
oct1605417064651
9376283156844
10121001241001
1147353056323
121b54b0a23a1
13b54476a374
145bdc2d825b
153232d2e851
hex1c2c3c69a9

121001241001 has 4 divisors (see below), whose sum is σ = 122705483904. Its totient is φ = 119296998100.

The previous prime is 121001240959. The next prime is 121001241013. The reversal of 121001241001 is 100142100121.

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 121001241001 - 27 = 121001240873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121001241601) 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, 852121345 + ... + 852121486.

It is an arithmetic number, because the mean of its divisors is an integer number (30676370976).

Almost surely, 2121001241001 is an apocalyptic number.

It is an amenable number.

121001241001 is a deficient number, since it is larger than the sum of its proper divisors (1704242903).

121001241001 is an equidigital number, since it uses as much as digits as its factorization.

121001241001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1704242902.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 121001241001 its reverse (100142100121), we get a palindrome (221143341122).

The spelling of 121001241001 in words is "one hundred twenty-one billion, one million, two hundred forty-one thousand, one".

Divisors: 1 71 1704242831 121001241001