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120130120321 = 887135434183
BaseRepresentation
bin110111111100001010…
…0000010101010000001
3102111002002000102000121
41233320110002222001
53432011302322241
6131104221220241
711451636113641
oct1577024025201
9374062012017
10120130120321
1146a46359482
121b347401681
13b436145843
145b58738521
1531d1609ad1
hex1bf8502a81

120130120321 has 4 divisors (see below), whose sum is σ = 120265555392. Its totient is φ = 119994685252.

The previous prime is 120130120303. The next prime is 120130120403. The reversal of 120130120321 is 123021031021.

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 120130120321 - 27 = 120130120193 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120130120295 and 120130120304.

It is not an unprimeable number, because it can be changed into a prime (120130120021) 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, 67716205 + ... + 67717978.

It is an arithmetic number, because the mean of its divisors is an integer number (30066388848).

Almost surely, 2120130120321 is an apocalyptic number.

It is an amenable number.

120130120321 is a deficient number, since it is larger than the sum of its proper divisors (135435071).

120130120321 is an equidigital number, since it uses as much as digits as its factorization.

120130120321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135435070.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 120130120321 its reverse (123021031021), we get a palindrome (243151151342).

The spelling of 120130120321 in words is "one hundred twenty billion, one hundred thirty million, one hundred twenty thousand, three hundred twenty-one".

Divisors: 1 887 135434183 120130120321