Search a number
-
+
12021131130031 = 21417347176421
BaseRepresentation
bin1010111011101110001101…
…0000000011010010101111
31120120012122022000201202001
42232323203100003102233
53033423234032130111
641322233103313131
72350332556445422
oct256734320032257
946505568021661
1012021131130031
113915151150631
1214219385ab7a7
1369278452761a
142d7b7c1c79b9
1515ca6d1211c1
hexaeee34034af

12021131130031 has 8 divisors (see below), whose sum is σ = 12027066928128. Its totient is φ = 12015195636000.

The previous prime is 12021131129981. The next prime is 12021131130077. The reversal of 12021131130031 is 13003113112021.

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 12021131130031 - 241 = 9822107874479 is a prime.

It is a super-2 number, since 2×120211311300312 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12021131129990 and 12021131130008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12021131130731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157263201 + ... + 157339621.

It is an arithmetic number, because the mean of its divisors is an integer number (1503383366016).

Almost surely, 212021131130031 is an apocalyptic number.

12021131130031 is a deficient number, since it is larger than the sum of its proper divisors (5935798097).

12021131130031 is an equidigital number, since it uses as much as digits as its factorization.

12021131130031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152033.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 12021131130031 its reverse (13003113112021), we get a palindrome (25024244242052).

The spelling of 12021131130031 in words is "twelve trillion, twenty-one billion, one hundred thirty-one million, one hundred thirty thousand, thirty-one".

Divisors: 1 2141 73471 76421 157301411 163617361 5614727291 12021131130031