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120310221132 = 2234371327843
BaseRepresentation
bin111000000001100001…
…1000100100101001100
3102111112121220110220000
41300003003010211030
53432343404034012
6131134133324300
711456254002123
oct1600303044514
9374477813800
10120310221132
1147028a8a922
121b397796690
13b46455357a
145b7461aaba
1531e2332ddc
hex1c030c494c

120310221132 has 30 divisors (see below), whose sum is σ = 314514683868. Its totient is φ = 40103406936.

The previous prime is 120310221131. The next prime is 120310221191. The reversal of 120310221132 is 231122013021.

120310221132 is a `hidden beast` number, since 1 + 2 + 0 + 310 + 221 + 132 = 666.

It is a super-2 number, since 2×1203102211322 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (120310221131) 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 9 ways as a sum of consecutive naturals, for example, 185663598 + ... + 185664245.

Almost surely, 2120310221132 is an apocalyptic number.

120310221132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

120310221132 is an abundant number, since it is smaller than the sum of its proper divisors (194204462736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120310221132 is a wasteful number, since it uses less digits than its factorization.

120310221132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371327859 (or 371327848 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 120310221132 its reverse (231122013021), we get a palindrome (351432234153).

The spelling of 120310221132 in words is "one hundred twenty billion, three hundred ten million, two hundred twenty-one thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 81 108 162 324 371327843 742655686 1113983529 1485311372 2227967058 3341950587 4455934116 6683901174 10025851761 13367802348 20051703522 30077555283 40103407044 60155110566 120310221132