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120331003313231 = 172457911094647
BaseRepresentation
bin11011010111000010111110…
…101101010011110001001111
3120210001112100111220120001222
4123113002332231103301033
5111233000343322010411
61103531144430353555
734226425303006034
oct3327027655236117
9523045314816058
10120331003313231
1135383101390627
12115b4b5565b8bb
13521b21b44a929
1421a00a198b38b
15dda143a764db
hex6d70beb53c4f

120331003313231 has 12 divisors (see below), whose sum is σ = 128105374076688. Its totient is φ = 113004891132672.

The previous prime is 120331003313201. The next prime is 120331003313251. The reversal of 120331003313231 is 132313300133021.

It is a de Polignac number, because none of the positive numbers 2k-120331003313231 is a prime.

It is a super-2 number, since 2×1203310033132312 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120331003313231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120331003313201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 455415251 + ... + 455679396.

It is an arithmetic number, because the mean of its divisors is an integer number (10675447839724).

Almost surely, 2120331003313231 is an apocalyptic number.

120331003313231 is a deficient number, since it is larger than the sum of its proper divisors (7774370763457).

120331003313231 is an equidigital number, since it uses as much as digits as its factorization.

120331003313231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 911095138 (or 911095121 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 26.

Adding to 120331003313231 its reverse (132313300133021), we get a palindrome (252644303446252).

The spelling of 120331003313231 in words is "one hundred twenty trillion, three hundred thirty-one billion, three million, three hundred thirteen thousand, two hundred thirty-one".

Divisors: 1 17 289 457 7769 132073 911094647 15488608999 263306352983 416370253679 7078294312543 120331003313231