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120134121 = 3172138563
BaseRepresentation
bin1110010100100…
…01100111101001
322101001110000220
413022101213221
5221223242441
615530520253
72656060152
oct712214751
9271043026
10120134121
11618a35a8
1234296089
131bb72ca3
1411d52929
15a830466
hex72919e9

120134121 has 12 divisors (see below), whose sum is σ = 170156592. Its totient is φ = 75377728.

The previous prime is 120134099. The next prime is 120134123. The reversal of 120134121 is 121431021.

It is not a de Polignac number, because 120134121 - 29 = 120133609 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120134121.

It is not an unprimeable number, because it can be changed into a prime (120134123) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68415 + ... + 70148.

It is an arithmetic number, because the mean of its divisors is an integer number (14179716).

Almost surely, 2120134121 is an apocalyptic number.

It is an amenable number.

120134121 is a deficient number, since it is larger than the sum of its proper divisors (50022471).

120134121 is a wasteful number, since it uses less digits than its factorization.

120134121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138600 (or 138583 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 120134121 is about 10960.5711986192. The cubic root of 120134121 is about 493.4261080187.

Adding to 120134121 its reverse (121431021), we get a palindrome (241565142).

The spelling of 120134121 in words is "one hundred twenty million, one hundred thirty-four thousand, one hundred twenty-one".

Divisors: 1 3 17 51 289 867 138563 415689 2355571 7066713 40044707 120134121