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120233121 = 3192391711
BaseRepresentation
bin1110010101010…
…01110010100001
322101020110211120
413022221302201
5221234424441
615533002453
72656651611
oct712516241
9271213746
10120233121
1161960a18
1234323429
131bba9078
1411d7aa41
15a84e966
hex72a9ca1

120233121 has 16 divisors (see below), whose sum is σ = 176087040. Its totient is φ = 72634320.

The previous prime is 120233111. The next prime is 120233123. The reversal of 120233121 is 121332021.

It is not a de Polignac number, because 120233121 - 25 = 120233089 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 120233121.

It is not an unprimeable number, because it can be changed into a prime (120233123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44545 + ... + 47166.

It is an arithmetic number, because the mean of its divisors is an integer number (11005440).

Almost surely, 2120233121 is an apocalyptic number.

It is an amenable number.

120233121 is a deficient number, since it is larger than the sum of its proper divisors (55853919).

120233121 is a wasteful number, since it uses less digits than its factorization.

120233121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91756.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 120233121 is about 10965.0864565675. The cubic root of 120233121 is about 493.5616114929.

Adding to 120233121 its reverse (121332021), we get a palindrome (241565142).

The spelling of 120233121 in words is "one hundred twenty million, two hundred thirty-three thousand, one hundred twenty-one".

Divisors: 1 3 19 23 57 69 437 1311 91711 275133 1742509 2109353 5227527 6328059 40077707 120233121