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120320221230 = 234511137241409
BaseRepresentation
bin111000000001110100…
…1001110000000101110
3102111120022201112110000
41300003221032000232
53432403434034410
6131135131525130
711456435001666
oct1600351160056
9374508645400
10120320221230
11470336a0070
121b39abb97a6
13b4666451a1
145b75aa11a6
1531e315adc0
hex1c03a4e02e

120320221230 has 320 divisors, whose sum is σ = 357863520960. Its totient is φ = 28764979200.

The previous prime is 120320221211. The next prime is 120320221249. The reversal of 120320221230 is 32122023021.

120320221230 is a `hidden beast` number, since 120 + 320 + 221 + 2 + 3 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (120320221211) and next prime (120320221249).

It is a super-2 number, since 2×1203202212302 (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 a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 294181266 + ... + 294181674.

It is an arithmetic number, because the mean of its divisors is an integer number (1118323503).

Almost surely, 2120320221230 is an apocalyptic number.

120320221230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 120320221230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178931760480).

120320221230 is an abundant number, since it is smaller than the sum of its proper divisors (237543299730).

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

120320221230 is a wasteful number, since it uses less digits than its factorization.

120320221230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817 (or 808 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 120320221230 its reverse (32122023021), we get a palindrome (152442244251).

The spelling of 120320221230 in words is "one hundred twenty billion, three hundred twenty million, two hundred twenty-one thousand, two hundred thirty".