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120011320221 = 31311527266957
BaseRepresentation
bin110111111000100111…
…0110110101110011101
3102110202210110201220220
41233301032312232131
53431240344221341
6131044335031553
711445664250652
oct1576116665635
9373683421826
10120011320221
1146995297181
121b31366b5b9
13b41764bb20
145b46a51c29
1531c5e8ea66
hex1bf13b6b9d

120011320221 has 16 divisors (see below), whose sum is σ = 172339542144. Its totient is φ = 73846436544.

The previous prime is 120011320213. The next prime is 120011320307. The reversal of 120011320221 is 122023110021.

It is not a de Polignac number, because 120011320221 - 23 = 120011320213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120011320221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120011320421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 316075 + ... + 583031.

It is an arithmetic number, because the mean of its divisors is an integer number (10771221384).

Almost surely, 2120011320221 is an apocalyptic number.

It is an amenable number.

120011320221 is a deficient number, since it is larger than the sum of its proper divisors (52328221923).

120011320221 is a wasteful number, since it uses less digits than its factorization.

120011320221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278500.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 120011320221 its reverse (122023110021), we get a palindrome (242034430242).

The spelling of 120011320221 in words is "one hundred twenty billion, eleven million, three hundred twenty thousand, two hundred twenty-one".

Divisors: 1 3 13 39 11527 34581 149851 266957 449553 800871 3470441 10411323 3077213339 9231640017 40003773407 120011320221