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120220013231 = 2318112886227
BaseRepresentation
bin110111111110110101…
…0111101001010101111
3102111022100011102220122
41233331222331022233
53432202310410411
6131121152035155
711454110152253
oct1577552751257
9374270142818
10120220013231
1146a9207733a
121b371532abb
13b44b95ab06
145b66658263
1531d94649db
hex1bfdabd2af

120220013231 has 8 divisors (see below), whose sum is σ = 125516283264. Its totient is φ = 114929519320.

The previous prime is 120220013227. The next prime is 120220013257. The reversal of 120220013231 is 132310022021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 120220013231 - 22 = 120220013227 is a prime.

It is a super-2 number, since 2×1202200132312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120220013531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1401461 + ... + 1484766.

It is an arithmetic number, because the mean of its divisors is an integer number (15689535408).

Almost surely, 2120220013231 is an apocalyptic number.

120220013231 is a deficient number, since it is larger than the sum of its proper divisors (5296270033).

120220013231 is a wasteful number, since it uses less digits than its factorization.

120220013231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2888061.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 120220013231 its reverse (132310022021), we get a palindrome (252530035252).

The spelling of 120220013231 in words is "one hundred twenty billion, two hundred twenty million, thirteen thousand, two hundred thirty-one".

Divisors: 1 23 1811 41653 2886227 66383221 5226957097 120220013231