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120430230121 = 743162086447
BaseRepresentation
bin111000000101000110…
…0110111101001101001
3102111211222201120021101
41300022030313221221
53433120114330441
6131154101441401
711462242031425
oct1601214675151
9374758646241
10120430230121
114708a7a8403
121b40ba10261
13b4833815c6
145b86539b85
1531ecb3b231
hex1c0a337a69

120430230121 has 4 divisors (see below), whose sum is σ = 120592317312. Its totient is φ = 120268142932.

The previous prime is 120430230101. The next prime is 120430230133. The reversal of 120430230121 is 121032034021.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 121032034021 = 177119531413.

It is a cyclic number.

It is not a de Polignac number, because 120430230121 - 29 = 120430229609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120430230101) 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, 81042481 + ... + 81043966.

It is an arithmetic number, because the mean of its divisors is an integer number (30148079328).

Almost surely, 2120430230121 is an apocalyptic number.

It is an amenable number.

120430230121 is a deficient number, since it is larger than the sum of its proper divisors (162087191).

120430230121 is an equidigital number, since it uses as much as digits as its factorization.

120430230121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162087190.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 120430230121 its reverse (121032034021), we get a palindrome (241462264142).

The spelling of 120430230121 in words is "one hundred twenty billion, four hundred thirty million, two hundred thirty thousand, one hundred twenty-one".

Divisors: 1 743 162086447 120430230121