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121040101 = 7131330111
BaseRepresentation
bin1110011011011…
…10110011100101
322102202110210201
413031232303211
5221441240401
620002150501
72666552410
oct715566345
9272673721
10121040101
1162362246
1234652431
131c0cc480
141210ab77
15a95db01
hex736ece5

121040101 has 8 divisors (see below), whose sum is σ = 148972544. Its totient is φ = 95767920.

The previous prime is 121040083. The next prime is 121040107. The reversal of 121040101 is 101040121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121040101 - 25 = 121040069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121040107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 664965 + ... + 665146.

It is an arithmetic number, because the mean of its divisors is an integer number (18621568).

Almost surely, 2121040101 is an apocalyptic number.

It is an amenable number.

121040101 is a deficient number, since it is larger than the sum of its proper divisors (27932443).

121040101 is a wasteful number, since it uses less digits than its factorization.

121040101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1330131.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 121040101 is about 11001.8226217295. The cubic root of 121040101 is about 494.6633782492.

Adding to 121040101 its reverse (101040121), we get a palindrome (222080222).

The spelling of 121040101 in words is "one hundred twenty-one million, forty thousand, one hundred one".

Divisors: 1 7 13 91 1330111 9310777 17291443 121040101