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120120213331 = 376131938371
BaseRepresentation
bin110111111011110111…
…0001111111101010011
3102111001101101002012001
41233313232033331103
53432001233311311
6131103225014431
711451455652406
oct1576756177523
9374041332161
10120120213331
1146a40802188
121b344024417
13b434087411
145b572b9d3d
1531d07ee4c1
hex1bf7b8ff53

120120213331 has 4 divisors (see below), whose sum is σ = 120152155464. Its totient is φ = 120088271200.

The previous prime is 120120213223. The next prime is 120120213349. The reversal of 120120213331 is 133312021021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 120120213331 - 29 = 120120212819 is a prime.

It is a super-2 number, since 2×1201202133312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120120213299 and 120120213308.

It is not an unprimeable number, because it can be changed into a prime (120120213131) 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, 15965425 + ... + 15972946.

It is an arithmetic number, because the mean of its divisors is an integer number (30038038866).

Almost surely, 2120120213331 is an apocalyptic number.

120120213331 is a deficient number, since it is larger than the sum of its proper divisors (31942133).

120120213331 is an equidigital number, since it uses as much as digits as its factorization.

120120213331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31942132.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 120120213331 its reverse (133312021021), we get a palindrome (253432234352).

The spelling of 120120213331 in words is "one hundred twenty billion, one hundred twenty million, two hundred thirteen thousand, three hundred thirty-one".

Divisors: 1 3761 31938371 120120213331