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120331131201 = 345632638667
BaseRepresentation
bin111000000010001001…
…0110101100101000001
3102111121002020211010000
41300010102311211001
53432414232144301
6131140201430213
711456626511331
oct1600422654501
9374532224100
10120331131201
1147039871976
121b3a279b369
13b468994ca8
145b773010c1
1531e40b3786
hex1c044b5941

120331131201 has 20 divisors (see below), whose sum is σ = 180073258992. Its totient is φ = 80078235768.

The previous prime is 120331131191. The next prime is 120331131209. The reversal of 120331131201 is 102131133021.

120331131201 is a `hidden beast` number, since 1 + 2 + 0 + 331 + 131 + 201 = 666.

It is not a de Polignac number, because 120331131201 - 25 = 120331131169 is a prime.

It is a super-2 number, since 2×1203311312012 (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (120331131209) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1273731 + ... + 1364936.

Almost surely, 2120331131201 is an apocalyptic number.

It is an amenable number.

120331131201 is a deficient number, since it is larger than the sum of its proper divisors (59742127791).

120331131201 is an equidigital number, since it uses as much as digits as its factorization.

120331131201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2639242 (or 2639233 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 120331131201 its reverse (102131133021), we get a palindrome (222462264222).

The spelling of 120331131201 in words is "one hundred twenty billion, three hundred thirty-one million, one hundred thirty-one thousand, two hundred one".

Divisors: 1 3 9 27 81 563 1689 5067 15201 45603 2638667 7916001 23748003 71244009 213732027 1485569521 4456708563 13370125689 40110377067 120331131201