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12011320032031 = 61743593944623
BaseRepresentation
bin1010111011001001101001…
…1101101011101100011111
31120112021022112201022110001
42232302122131223230133
53033243140412011111
641313531345355131
72346534464466235
oct256623235535437
946467275638401
1012011320032031
113910a77029481
12141ba5a938aa7
1369187ca09ba8
142d74cb198955
1515c696b291c1
hexaec9a76bb1f

12011320032031 has 16 divisors (see below), whose sum is σ = 12226990279680. Its totient is φ = 11796261210720.

The previous prime is 12011320032001. The next prime is 12011320032059. The reversal of 12011320032031 is 13023002311021.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12011320032031 is a prime.

It is a super-2 number, since 2×120113200320312 (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 (12011320032001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 269150986 + ... + 269195608.

It is an arithmetic number, because the mean of its divisors is an integer number (764186892480).

Almost surely, 212011320032031 is an apocalyptic number.

12011320032031 is a deficient number, since it is larger than the sum of its proper divisors (215670247649).

12011320032031 is an equidigital number, since it uses as much as digits as its factorization.

12011320032031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51366.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 12011320032031 its reverse (13023002311021), we get a palindrome (25034322343052).

The spelling of 12011320032031 in words is "twelve trillion, eleven billion, three hundred twenty million, thirty-two thousand, thirty-one".

Divisors: 1 61 743 5939 44623 45323 362279 2722003 4412677 33154889 265015997 269173297 2022448229 16165975817 196906885771 12011320032031