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12021131132131 = 118779124482299
BaseRepresentation
bin1010111011101110001101…
…0000000011110011100011
31120120012122022000211121211
42232323203100003303203
53033423234032212011
641322233103330551
72350332556454512
oct256734320036343
946505568024554
1012021131132131
113915151152170
1214219385b0a57
13692784528574
142d7b7c1c8679
1515ca6d121b21
hexaeee3403ce3

12021131132131 has 8 divisors (see below), whose sum is σ = 13115455128000. Its totient is φ = 10927056118440.

The previous prime is 12021131132099. The next prime is 12021131132147. The reversal of 12021131132131 is 13123113112021.

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

It is not a de Polignac number, because 12021131132131 - 25 = 12021131132099 is a prime.

It is a super-2 number, since 2×120211311321312 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12021131132531) 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, 62144581 + ... + 62337718.

It is an arithmetic number, because the mean of its divisors is an integer number (1639431891000).

Almost surely, 212021131132131 is an apocalyptic number.

12021131132131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12021131132131 is a deficient number, since it is larger than the sum of its proper divisors (1094323995869).

12021131132131 is a wasteful number, since it uses less digits than its factorization.

12021131132131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124491089.

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 12021131132131 its reverse (13123113112021), we get a palindrome (25144244244152).

The spelling of 12021131132131 in words is "twelve trillion, twenty-one billion, one hundred thirty-one million, one hundred thirty-two thousand, one hundred thirty-one".

Divisors: 1 11 8779 96569 124482299 1369305289 1092830102921 12021131132131