Search a number
-
+
12021103033231 = 31409948111289
BaseRepresentation
bin1010111011101110000110…
…0100110111101110001111
31120120012120100011021011211
42232323201210313232033
53033423204334030411
641322230221155251
72350332065564515
oct256734144675617
946505510137154
1012021103033231
113915137300036
12142192b0bbb27
1369277b76a9b6
142d7b785924b5
1515ca6a921221
hexaeee1937b8f

12021103033231 has 8 divisors (see below), whose sum is σ = 12439220124800. Its totient is φ = 11604882165120.

The previous prime is 12021103033207. The next prime is 12021103033309. The reversal of 12021103033231 is 13233030112021.

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 12021103033231 - 215 = 12021103000463 is a prime.

It is a super-2 number, since 2×120211030332312 (a number of 27 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 (12021103033531) 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, 474042966 + ... + 474068323.

It is an arithmetic number, because the mean of its divisors is an integer number (1554902515600).

Almost surely, 212021103033231 is an apocalyptic number.

12021103033231 is a deficient number, since it is larger than the sum of its proper divisors (418117091569).

12021103033231 is an equidigital number, since it uses as much as digits as its factorization.

12021103033231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 948111729.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 12021103033231 its reverse (13233030112021), we get a palindrome (25254133145252).

The spelling of 12021103033231 in words is "twelve trillion, twenty-one billion, one hundred three million, thirty-three thousand, two hundred thirty-one".

Divisors: 1 31 409 12679 948111289 29391449959 387777517201 12021103033231