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120121141 = 717160163
BaseRepresentation
bin1110010100011…
…10011100110101
322101000210020011
413022032130311
5221222334031
615530340221
72656004260
oct712163465
9271023204
10120121141
1161894878
123428a671
131bb6a0ca
1411d4bcd7
15a82b6b1
hex728e735

120121141 has 4 divisors (see below), whose sum is σ = 137281312. Its totient is φ = 102960972.

The previous prime is 120121123. The next prime is 120121163. The reversal of 120121141 is 141121021.

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 120121141 - 27 = 120121013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120121121) 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, 8580075 + ... + 8580088.

It is an arithmetic number, because the mean of its divisors is an integer number (34320328).

Almost surely, 2120121141 is an apocalyptic number.

It is an amenable number.

120121141 is a deficient number, since it is larger than the sum of its proper divisors (17160171).

120121141 is an equidigital number, since it uses as much as digits as its factorization.

120121141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17160170.

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

The square root of 120121141 is about 10959.9790601990. The cubic root of 120121141 is about 493.4083364882.

Adding to 120121141 its reverse (141121021), we get a palindrome (261242162).

The spelling of 120121141 in words is "one hundred twenty million, one hundred twenty-one thousand, one hundred forty-one".

Divisors: 1 7 17160163 120121141